-
question_answer1)
Which of the following statement is not correct for the element having electronic configuration \[1{{s}^{2}},2{{s}^{2}}{{p}^{6}},\,3{{s}^{1}}\]
A)
It is a monovalent electropositive done
clear
B)
It forms basic oxide done
clear
C)
It is a non-metal done
clear
D)
It has low electron affinity done
clear
View Solution play_arrow
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question_answer2)
Which of these dose not reflect the periodicity of the elements [UPSEAT 2001; BIT 1990; MP PMT 2001]
A)
Bonding behaviour done
clear
B)
Electronegativity done
clear
C)
Ionization energy done
clear
D)
Neutron/proton ratio done
clear
View Solution play_arrow
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question_answer3)
If an atom has electronic configuration \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{6}}3{{d}^{3}}4{{s}^{2}},\] it will be placed in [CBSE PMT 2002]
A)
Second group done
clear
B)
Third group done
clear
C)
Fifth group done
clear
D)
Sixth group done
clear
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question_answer4)
All the s-block elements of the periodic table are placed in the groups ? [Orissa JEE 2002]
A)
IA and IIA done
clear
B)
IIIA and IVA done
clear
C)
B sub groups done
clear
D)
VA to VIIA done
clear
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question_answer5)
The electronic configuration of halogen is [MP PET/PMT 1998; Pb. PMT 2001]
A)
\[n{{s}^{2}}n{{p}^{6}}\] done
clear
B)
\[n{{s}^{2}}n{{p}^{3}}\] done
clear
C)
\[n{{s}^{2}}n{{p}^{5}}\] done
clear
D)
\[n{{s}^{2}}\] done
clear
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question_answer6)
Hydrogen by donating one electron forms \[{{H}^{+}}\]. In this property, it resembles with
A)
Transitional metals done
clear
B)
Alkaline earth metals done
clear
C)
Alkali metals done
clear
D)
Halogens done
clear
View Solution play_arrow
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question_answer7)
The tenth elements in the periodic table resembles with the [CPMT 1988]
A)
First period done
clear
B)
Second period done
clear
C)
Fourth group done
clear
D)
Ninth group done
clear
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question_answer8)
The element with quantum numbers \[n=2,l=1,m=1,s=-1/2\] has the following position in the periodic table
A)
Group VII-A, period II done
clear
B)
Group 0, period II done
clear
C)
Group VII-A, period III done
clear
D)
Group 0, period III done
clear
View Solution play_arrow
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question_answer9)
Who developed the long form of periodic table [MP PET 1997]
A)
Lothar Meyer done
clear
B)
Niels Bohr done
clear
C)
Mendeleef done
clear
D)
Moseley done
clear
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question_answer10)
The electronic configuration of an element is \[1{{s}^{2}},\,2{{s}^{2}}\,2{{p}^{6}},\,3{{s}^{2}}\,3{{p}^{3}}\]. What is the atomic number of the element which is just below the above element in the periodic table [CBSE PMT 1995]
A)
33 done
clear
B)
34 done
clear
C)
31 done
clear
D)
49 done
clear
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question_answer11)
In the periodic table, the element with atomic number 16 will be placed in the group [MP PET/PMT 1998]
A)
Third done
clear
B)
Fourth done
clear
C)
Fifth done
clear
D)
Sixth done
clear
View Solution play_arrow
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question_answer12)
The first element of rare-earth metals is [AFMC 1992]
A)
Cerium done
clear
B)
Actinium done
clear
C)
Uranium done
clear
D)
Lanthanum done
clear
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question_answer13)
The \[d\]-block elements consists mostly of [MP PMT 1994]
A)
Monovalent metals done
clear
B)
All non-metals done
clear
C)
Elements which generally form stoichiometric metal oxide done
clear
D)
Many metals with catalytic properties done
clear
View Solution play_arrow
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question_answer14)
?The 6 properties of the elements are periodic function of their atomic numbers.? The statement was given by [MNR 1995]
A)
N. Bohr done
clear
B)
J.W. Dobereiner done
clear
C)
D.I. Mendeleef done
clear
D)
H.G.J. Moseley done
clear
View Solution play_arrow
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question_answer15)
The long form of periodic table has [CPMT 1986; KCET 1998]
A)
Eight horizontal rows and seven vertical columns done
clear
B)
Seven horizontal rows and eighteen vertical columns done
clear
C)
Seven horizontal rows and seven vertical columns done
clear
D)
Eight horizontal rows and eight vertical columns done
clear
View Solution play_arrow
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question_answer16)
The telluric helix was given by [AFMC 1990]
A)
De Chan Courtois done
clear
B)
Newlands done
clear
C)
L. Meyer done
clear
D)
Mendeleef done
clear
View Solution play_arrow
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question_answer17)
Which one of the following belongs to representative group of elements in the periodic table [Kurukshetra CEE 1991]
A)
Lanthanum done
clear
B)
Argon done
clear
C)
Chromium done
clear
D)
Aluminium done
clear
View Solution play_arrow
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question_answer18)
An element of atomic number 29 belongs to [CPMT 1991; Kurukshetra CEE 1991; MP PET 2001]
A)
\[s\]-block done
clear
B)
\[p\]-block done
clear
C)
\[d\]-block done
clear
D)
\[f\]-block done
clear
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question_answer19)
The element californium belongs to the family [MNR 1987]
A)
Actinide series done
clear
B)
Alkali metal family done
clear
C)
Alkaline earth family done
clear
D)
Lanthanide series done
clear
View Solution play_arrow
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question_answer20)
On moving from left to right across a period in the table the metallic character [CPMT 1986]
A)
Increases done
clear
B)
Decreases done
clear
C)
Remains constant done
clear
D)
First increases and then decreases done
clear
View Solution play_arrow
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question_answer21)
An element with atomic number 20 will be placed in which period of the periodic table [MNR 1986; UPSEAT 1999]
A)
4 done
clear
B)
3 done
clear
C)
2 done
clear
D)
1 done
clear
View Solution play_arrow
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question_answer22)
The electronic structure \[(n-1)\,{{d}^{1-10}}n{{s}^{0-2}}\] is characteristic of [CET Pune 1998]
A)
Transition elements done
clear
B)
Lanthanides done
clear
C)
Actinides done
clear
D)
Rare gases done
clear
View Solution play_arrow
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question_answer23)
The elements with atomic number 10, 18, 36, 54 and 86 are all [CPMT 1976]
A)
Light metals done
clear
B)
Inert gases done
clear
C)
Halogens done
clear
D)
Rare-earths done
clear
View Solution play_arrow
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question_answer24)
Elements of atomic number 6 is placed in [CPMT 1978]
A)
IV group done
clear
B)
IV period done
clear
C)
VI group done
clear
D)
III group done
clear
View Solution play_arrow
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question_answer25)
Which of the following elements is a lanthanide (Rare-earth element) [Manipal MEE 1995]
A)
Cadmium done
clear
B)
Californium done
clear
C)
Cerium done
clear
D)
Cesium done
clear
View Solution play_arrow
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question_answer26)
Mendeleef's periodic law is based on
A)
Atomic weight done
clear
B)
Atomic number done
clear
C)
Number of neutrons done
clear
D)
None of the above done
clear
View Solution play_arrow
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question_answer27)
The heaviest atom amongst the following is [CPMT 1976; NCERT 1976]
A)
U done
clear
B)
Ra done
clear
C)
Pb done
clear
D)
Hg done
clear
View Solution play_arrow
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question_answer28)
Which of the following pairs has both members from the same group of the periodic table [CPMT 1985; MP PET/PMT 1998]
A)
\[Mg-Ba\] done
clear
B)
\[Mg-Na\] done
clear
C)
\[Mg-Cu\] done
clear
D)
\[Mg-K\] done
clear
View Solution play_arrow
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question_answer29)
Which of the following pairs has both members from the same period of the periodic table [CPMT 1985; UPSEAT 2001; BHU 2003]
A)
\[Na-Ca\] done
clear
B)
\[Na-Cl\] done
clear
C)
\[Ca-Cl\] done
clear
D)
\[Cl-Br\] done
clear
View Solution play_arrow
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question_answer30)
Diagonal relationship is shown by [DPMT 1984]
A)
Elements of first period done
clear
B)
Elements of second period done
clear
C)
Elements of third period done
clear
D)
b and c both done
clear
View Solution play_arrow
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question_answer31)
The elements having the electronic configuration, [\[Kr\]] \[4{{d}^{10}}{{f}^{14}},\,5{{s}^{2}}{{p}^{6}}{{d}^{2}},\,6{{s}^{2}}\] belongs to [CPMT 1982]
A)
s-block done
clear
B)
p-block done
clear
C)
d-block done
clear
D)
f-block done
clear
View Solution play_arrow
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question_answer32)
Chemical property of Li and Mg similar because [RPMT 2002]
A)
These belong to same group done
clear
B)
Both ionisation potential is same done
clear
C)
Shows diagonal relationship done
clear
D)
Both electron affinity is same done
clear
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question_answer33)
According to the periodic law of elements, the variation in properties of elements is related to their [AIEEE 2003]
A)
Atomic masses done
clear
B)
Nuclear masses done
clear
C)
Atomic numbers done
clear
D)
Nuclear neutron-proton number done
clear
View Solution play_arrow
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question_answer34)
The element with atomic number 36 belongs to ?? block in the periodic table [KCET 2003]
A)
p done
clear
B)
s done
clear
C)
f done
clear
D)
d done
clear
View Solution play_arrow
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question_answer35)
Which group of the periodic table contains only metals [UPSEAT 2003]
A)
IIA done
clear
B)
IB done
clear
C)
IA done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer36)
The elements in which s and p-orbitals are present
A)
Common elements done
clear
B)
Inert gases done
clear
C)
Halogens done
clear
D)
Transitional elements done
clear
View Solution play_arrow
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question_answer37)
Aluminium is diagonally related to (in periodic table) [MP PET 1993]
A)
Li done
clear
B)
C done
clear
C)
B done
clear
D)
Be done
clear
View Solution play_arrow
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question_answer38)
An element has the electronic configuration \[1{{s}^{2}},2{{s}^{2}}2{{p}^{6}},\] \[3{{s}^{2}}3{{p}^{6}}3{{d}^{5}},\,4{{s}^{1}}\]. It is a
A)
s-block element done
clear
B)
p-block element done
clear
C)
d-block element done
clear
D)
Inert gas done
clear
View Solution play_arrow
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question_answer39)
Which of the following show diagonal relationship [KCET 2003; MP PMT 2003]
A)
B and Si done
clear
B)
B and Al done
clear
C)
B and Ga done
clear
D)
B and C done
clear
View Solution play_arrow
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question_answer40)
Which of the following dinegative anion is quite common [CPMT 2000]
A)
\[{{S}^{2-}}\] done
clear
B)
\[S{{e}^{2-}}\] done
clear
C)
\[T{{e}^{2-}}\] done
clear
D)
\[{{O}^{2-}}\] done
clear
View Solution play_arrow
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question_answer41)
An element has electronic configuration \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{4}}\]. Predict their period, group and block [CPMT 2000]
A)
Period = 3rd, block = p, group = 16 done
clear
B)
Period = 5th, block = s, group = 1 done
clear
C)
Period = 3rd, block = p, group = 10 done
clear
D)
Period = 4th, block = d, group = 12 done
clear
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question_answer42)
If the atomic number of an element is 33, it will be placed in the periodic table in the [RPET 1999; UPSEAT 2001, 02]
A)
First gp done
clear
B)
Third gp done
clear
C)
Fifth gp done
clear
D)
Seventh gp done
clear
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question_answer43)
Which of the following is the atomic number of a metal [AIIMS 2000]
A)
32 done
clear
B)
34 done
clear
C)
36 done
clear
D)
38 done
clear
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question_answer44)
Which of the following statement is not correct regarding hydrogen atom [AIIMS 2000]
A)
It resembles halogens in some properties done
clear
B)
It resembles alkali metals in some properties done
clear
C)
It can be placed in 7th group of periodic table done
clear
D)
It can not be placed in first group of periodic table done
clear
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question_answer45)
Lithium shows similarities to magnesium in its chemical behaviour because [AFMC 2000]
A)
Similar size, same electronegativity and lower polarizing power done
clear
B)
Similar size, greater electronegativity and similar polarizing power done
clear
C)
Similar size, same electronegativity and similar high polarizing power done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer46)
On going left to right in a period, in transition metals, their atomic volumes [MP PMT 2003]
A)
Decrease done
clear
B)
Increase done
clear
C)
Remain same done
clear
D)
None of these of correct done
clear
View Solution play_arrow
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question_answer47)
Electronic configuration of chalcons in their outermost orbit is
A)
\[{{s}^{2}}{{p}^{3}}\] done
clear
B)
\[{{s}^{2}}{{p}^{4}}\] done
clear
C)
\[{{s}^{2}}{{p}^{5}}\] done
clear
D)
\[{{s}^{2}}{{p}^{6}}\] done
clear
View Solution play_arrow
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question_answer48)
Which configuration represents a noble gas [DPMT 2000]
A)
\[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{6}}3{{d}^{10}}4{{s}^{2}}\] done
clear
B)
\[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{6}}\] done
clear
C)
\[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{p}^{6}}\] done
clear
D)
\[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}\] done
clear
View Solution play_arrow
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question_answer49)
Which of the following pair has elements containing same number of electrons in the outermost orbit [Kurukshetra CEE 1998; AFMC 2000]
A)
\[N\], \[O\] done
clear
B)
\[Na\], \[Ca\] done
clear
C)
\[As\], \[Bi\] done
clear
D)
\[Pb\], \[Sb\] done
clear
View Solution play_arrow
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question_answer50)
Dobereiner traids is [RPMT 1997]
A)
\[Na\], \[K\], \[Rb\] done
clear
B)
\[Mg,\]\[S,\]\[As\] done
clear
C)
\[Cl\], \[Br,I\] done
clear
D)
\[P,\]\[S,\], \[As\] done
clear
View Solution play_arrow
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question_answer51)
As per the modern periodic law, the physical and chemical properties of elements are periodic functions of their [RPMT 1997; EAMCET 1998]
A)
Atomic volume done
clear
B)
Electronic configuration done
clear
C)
Atomic weight done
clear
D)
Atomic size done
clear
View Solution play_arrow
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question_answer52)
Elements after atomic number 103 have been discovered till now. If an element with atomic number 106 were ever discovered which of the following electronic configuration will it possess [AIIMS 1982]
A)
\[[Rn]\,5{{f}^{14}}\,6{{d}^{4}}\,7{{s}^{2}}\] done
clear
B)
\[[Rn]\,5{{f}^{14}}\,6{{d}^{5}}7{{s}^{1}}\] done
clear
C)
\[[Rn]\,5{{f}^{14}}\,6{{d}^{6}}\,7{{s}^{0}}\] done
clear
D)
\[[Rn]\,5{{f}^{14}}\,6{{d}^{1}}\,7{{s}^{2}}\,7{{p}^{3}}\] done
clear
View Solution play_arrow
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question_answer53)
The element X, Y, Z and T have the indicated electronic configurations. Starting with the innermost shell, which is the most metallic element [CPMT 1979, 93]
A)
\[X=2,\,8,\,4\] done
clear
B)
\[Y=2,\,8,\,8\] done
clear
C)
\[Z=2,\,8,\,8,\,1\] done
clear
D)
\[T=2,\,8,\,8,\,7\] done
clear
View Solution play_arrow
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question_answer54)
Which pair of atomic numbers represents \[s\]-block elements [EAMCET 1990; RPMT 1997; MP PET 2003]
A)
7, 15 done
clear
B)
6, 12 done
clear
C)
9, 17 done
clear
D)
3, 12 done
clear
View Solution play_arrow
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question_answer55)
Which pair of elements has same chemical properties [EAMCET 1987]
A)
13, 22 done
clear
B)
3, 11 done
clear
C)
4, 24 done
clear
D)
2, 4 done
clear
View Solution play_arrow
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question_answer56)
Mosley's name is most closely associated with the discovery of
A)
Positron done
clear
B)
Deutrons done
clear
C)
Atomic number done
clear
D)
Atomic weight done
clear
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question_answer57)
In the periodic table going down in fluorine group [CPMT 1981]
A)
Reactivity will increase done
clear
B)
Electronegativity will increase done
clear
C)
Ionic radius will increase done
clear
D)
Ionization potential will increase done
clear
View Solution play_arrow
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question_answer58)
Beryllium resembles much with [CPMT 1988]
A)
\[Zn\] done
clear
B)
\[Al\] done
clear
C)
\[Li\] done
clear
D)
\[Ra\] done
clear
View Solution play_arrow
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question_answer59)
The last member in each period of the periodic table is [DPMT 2001]
A)
An inert gas element done
clear
B)
A transition element done
clear
C)
A halogen done
clear
D)
An alkali metal done
clear
View Solution play_arrow
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question_answer60)
Which one of the following combination represents a metallic element [EAMCET 1979]
A)
2, 8, 7 done
clear
B)
2, 8, 8 done
clear
C)
2, 8, 4 done
clear
D)
2, 8, 2 done
clear
View Solution play_arrow
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question_answer61)
The electronic configuration of an atom A is \[1{{s}^{2}},\] \[2{{s}^{2}}{{p}^{6}},\] \[3{{s}^{2}}{{p}^{6}}{{d}^{10}},\,4{{s}^{2}}{{p}^{3}}\]. The chemistry of A is therefore likely to be similar to that of [MP PMT 1995]
A)
Chlorine done
clear
B)
Nitrogen done
clear
C)
Oxygen done
clear
D)
Boron done
clear
View Solution play_arrow
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question_answer62)
The element having the electronic configuration \[1{{s}^{2}},\] \[2{{s}^{2}}\,2{{p}^{6}},\,3{{s}^{2}}\,3{{p}^{1}}\] is
A)
A transition element done
clear
B)
A representative element done
clear
C)
An inert gas done
clear
D)
An inner-transition element done
clear
View Solution play_arrow
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question_answer63)
The element with configuration \[1{{s}^{2}},\,2{{s}^{2}}{{p}^{6}},\,3{{s}^{2}}\] would be [CPMT 1986; MP PMT 1993]
A)
A metal done
clear
B)
A non-metal done
clear
C)
An inert gas done
clear
D)
A metalloid done
clear
View Solution play_arrow
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question_answer64)
The long form of periodic table is based on [CPMT 1997]
A)
Shape of the atom done
clear
B)
Mass of the atom done
clear
C)
Atomic number of the atom done
clear
D)
Electronegativity done
clear
View Solution play_arrow
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question_answer65)
Chloride of an element \[A\] gives neutral solution in water. In the periodic table, the element \[A\] belongs to [AIIMS 1992; UPSEAT 2001]
A)
First group done
clear
B)
Third group done
clear
C)
Fifth group done
clear
D)
First transition series done
clear
View Solution play_arrow
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question_answer66)
The fundamental basis of the present-day Periodic Table is that elements are [JIPMER 1999]
A)
Arranged in the order of increasing atomic weights done
clear
B)
Grouped according to chemical properties done
clear
C)
Arranged in the order of increasing number of neutrons in the atomic nucleus done
clear
D)
Arranged in the order of increasing number of protons in the nucleus done
clear
View Solution play_arrow
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question_answer67)
All the elements in a group in the periodic table have the same [NCERT 1974; MP PET 1996; MP PMT 1996]
A)
Atomic number done
clear
B)
Electronic configuration done
clear
C)
Atomic weight done
clear
D)
Number of electrons in the outermost shell or number of electrons for bonding done
clear
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question_answer68)
The most predominantly ionic compounds will be obtained from the combination of elements belonging to
A)
1 and 7 groups done
clear
B)
2 and 6 groups done
clear
C)
3 and 5 groups done
clear
D)
0 and 7 groups done
clear
View Solution play_arrow
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question_answer69)
An atom with atomic number 21 belongs to the category of [Kurukshetra CEE 1991]
A)
\[s\]-block elements done
clear
B)
\[p\]-block elements done
clear
C)
\[d\]-block elements done
clear
D)
\[f\]-block elements done
clear
View Solution play_arrow
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question_answer70)
Which metal has 2 electrons in the outermost orbit
A)
Na done
clear
B)
Cu done
clear
C)
Au done
clear
D)
Be done
clear
View Solution play_arrow
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question_answer71)
In the modern periodic table, elements are arranged in [MP PMT 1990; MP PET 1995; CPMT 1971, 73, 78, 80]
A)
Increasing mass done
clear
B)
Increasing volume done
clear
C)
Increasing atomic number done
clear
D)
Alphabetically done
clear
View Solution play_arrow
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question_answer72)
Alkali metals in each period have [MP PMT 1995]
A)
Smallest size done
clear
B)
Lowest ionization potential done
clear
C)
Highest ionization potential done
clear
D)
Highest electronegativity done
clear
View Solution play_arrow
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question_answer73)
The elements on the right side of the periodic table are [CPMT 1976]
A)
Metals done
clear
B)
Metalloids done
clear
C)
Non-metals done
clear
D)
Transition elements done
clear
View Solution play_arrow
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question_answer74)
The screening effect of d-electons is [RPMT 2000]
A)
Equal to that of p-electrons done
clear
B)
More than that of p-electrons done
clear
C)
Same as f-electrons done
clear
D)
Less than p-electrons done
clear
View Solution play_arrow
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question_answer75)
Chemical behaviour of an atom is determined by
A)
Atomic number done
clear
B)
Mass number done
clear
C)
Binding energy done
clear
D)
Number of isotopes done
clear
View Solution play_arrow
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question_answer76)
Which of the following is a inert element
A)
Na done
clear
B)
Fe done
clear
C)
Li done
clear
D)
He done
clear
View Solution play_arrow
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question_answer77)
The lightest metal is [CPMT 1976; NCERT 1976; AFMC 1988]
A)
\[Li\] done
clear
B)
\[Mg\] done
clear
C)
\[Ca\] done
clear
D)
\[Na\] done
clear
View Solution play_arrow
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question_answer78)
Choose the typical element
A)
K done
clear
B)
Na done
clear
C)
Sc done
clear
D)
He done
clear
View Solution play_arrow
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question_answer79)
Of the following pairs, the one containing example of metalloid elements in the periodic table is
A)
Sodium and potassium done
clear
B)
Fluorine and chlorine done
clear
C)
Calcium and magnesium done
clear
D)
Boron and silicon done
clear
View Solution play_arrow
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question_answer80)
The number of elements in each of the long periods in the periodic table is
A)
2 done
clear
B)
8 done
clear
C)
18 done
clear
D)
32 done
clear
View Solution play_arrow
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question_answer81)
In the long form of the periodic table, all the non- metals are placed under [EAMCET 1988]
A)
s-block done
clear
B)
p-block done
clear
C)
d-block done
clear
D)
f-block done
clear
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question_answer82)
Elements with outer electronic configuration \[n{{s}^{2}}n{{p}^{6}}\] are [MP PET/PMT 1998]
A)
Alkaline earth metals done
clear
B)
Transition elements done
clear
C)
Chalcogenes done
clear
D)
Noble gases done
clear
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question_answer83)
Highest density is of ???. [RPET 2000]
A)
\[Ir\] done
clear
B)
\[Os\] done
clear
C)
\[Pb\] done
clear
D)
\[Hg\] done
clear
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question_answer84)
Lithium shows diagonal relationship with [MP PET 1995, 96; EAMCET 1990]
A)
Al done
clear
B)
Mg done
clear
C)
Be done
clear
D)
B done
clear
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question_answer85)
\[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}\] is the electronic configuration of the metal [RPET 2000]
A)
\[Na\] done
clear
B)
\[Mg\] done
clear
C)
\[Fe\] done
clear
D)
\[Al\] done
clear
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question_answer86)
Element having atomic number 17 is placed in [MP PET 1995]
A)
I-group done
clear
B)
V-group done
clear
C)
VIII-group done
clear
D)
VII-group done
clear
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question_answer87)
The most importasnt active step in the development of periodic table was taken by [CPMT 1976]
A)
Mendeleef done
clear
B)
Dalton done
clear
C)
Avogadro done
clear
D)
Cavendish done
clear
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question_answer88)
Who is called the father of chemistry [CPMT 1972]
A)
Faraday done
clear
B)
Priestley done
clear
C)
Rutherford done
clear
D)
Lavosier done
clear
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question_answer89)
The total number of rare-earth elements is [CPMT 1993]
A)
8 done
clear
B)
32 done
clear
C)
14 done
clear
D)
10 done
clear
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question_answer90)
Which is metalloid [Bihar MEE 1997]
A)
\[Pb\] done
clear
B)
\[Sb\] done
clear
C)
\[Bi\] done
clear
D)
\[Zn\] done
clear
E)
\[Mg\] done
clear
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question_answer91)
The element or elements whose position is anomalous in the periodic table is
A)
Halogens done
clear
B)
\[Fe,\,Co\] and \[Ni\] done
clear
C)
Inert gases done
clear
D)
Hydrogen done
clear
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question_answer92)
An element M has an atomic mass 19 and atomic number 9. Its ion is represented by
A)
\[{{M}^{+}}\] done
clear
B)
\[{{M}^{-}}\] done
clear
C)
\[{{M}^{2+}}\] done
clear
D)
\[{{M}^{2-}}\] done
clear
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question_answer93)
The number of elements in the 5th period of the periodic table are
A)
8 done
clear
B)
10 done
clear
C)
18 done
clear
D)
32 done
clear
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question_answer94)
The element with atomic number 55 belongs to [MP PMT 1995]
A)
s-block done
clear
B)
p-block done
clear
C)
d-block done
clear
D)
f-block done
clear
View Solution play_arrow
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question_answer95)
Coloured salts are formed by [Bihar MEE 1996]
A)
Alkali metals done
clear
B)
Lanthanides done
clear
C)
Actinides done
clear
D)
Transition metals done
clear
E)
None of these done
clear
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question_answer96)
Which one of the following is an s - block element [MP PMT 1999]
A)
Aluminium done
clear
B)
Chromium done
clear
C)
Niobium done
clear
D)
Potassium done
clear
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question_answer97)
In the modern periodic table, the place of the element with atomic number 31 is in [MP PMT 1999]
A)
s - block done
clear
B)
d- block done
clear
C)
p -block done
clear
D)
f - block done
clear
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question_answer98)
Last element of group-IV is found to be [DPMT 1996]
A)
Strong metallic done
clear
B)
Weak metallic done
clear
C)
Strong non-metallic done
clear
D)
Weak non-metallic done
clear
View Solution play_arrow
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question_answer99)
Elements of d group are called [DPMT 1996]
A)
Transition elements done
clear
B)
Transuranic elements done
clear
C)
Metals done
clear
D)
Metalloids done
clear
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question_answer100)
Which of the following is a normal element
A)
Ce done
clear
B)
He done
clear
C)
Li done
clear
D)
Ar done
clear
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question_answer101)
Which of the following is metalloid [BHU 1996; AMU 2000]
A)
\[Pb\] done
clear
B)
\[Zn\] done
clear
C)
\[As\] done
clear
D)
None of these done
clear
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question_answer102)
Under normal condition which of the following electronic configuration is able to form dipositive ion [RPET 2000]
A)
\[[Ar]\,4{{s}^{1}}\] done
clear
B)
\[[Ne]\,2{{s}^{2}}3{{p}^{6}}\] done
clear
C)
\[[Ne]\,3{{s}^{2}}\] done
clear
D)
None of these done
clear
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question_answer103)
The statement that is true for the long form of the periodic table is [IIT 1988]
A)
It reflects the sequence of filling the electrons in the order of sub-energy levels s, p, d and f done
clear
B)
It helps to predict the stable valency states of the elements done
clear
C)
It reflects trends in physical and chemical properties of the elements done
clear
D)
It helps to predict the relative ionicity of the bonds between any two elements done
clear
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question_answer104)
To which block is related an element having electronic configuration \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{6}}3{{d}^{10}}4{{s}^{1}}\] in the periodic table [MP PMT 1995]
A)
s - block done
clear
B)
p - block done
clear
C)
d - block done
clear
D)
f - block done
clear
View Solution play_arrow
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question_answer105)
\[Ce-58\] is a member of
A)
s-block elements done
clear
B)
p-block elements done
clear
C)
d-block elements done
clear
D)
f-block elements done
clear
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question_answer106)
Atomic number of elements represent
A)
Number of protons in the nucleus done
clear
B)
Number of neutrons in the nucleus done
clear
C)
Number of protons and neutrons in nucleus done
clear
D)
The valency of an element done
clear
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question_answer107)
As we go from left to right in period two of the periodic table, gram atomic volume of the elements
A)
Will change indefinitely done
clear
B)
Increases at a constant rate done
clear
C)
First increases then decrease done
clear
D)
Decreases done
clear
View Solution play_arrow
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question_answer108)
The electronic configuration of the element which is just above the element with atomic number 43 in the same periodic group is [MNR 1992; UPSEAT 1999, 2000, 02]
A)
\[1{{s}^{2}}\,2{{s}^{2}}\,2{{p}^{6}}\,3{{s}^{2}}\,3{{p}^{6}}\,3{{d}^{5}}\,4{{s}^{2}}\] done
clear
B)
\[1{{s}^{2}}\,2{{s}^{2}}\,2{{p}^{6}}\,3{{s}^{2}}\,3{{p}^{6}}\,3{{d}^{10}}\,4{{s}^{2}}\,4{{p}^{5}}\] done
clear
C)
\[1{{s}^{2}}\,2{{s}^{2}}\,2{{p}^{6}}\,3{{s}^{2}}\,3{{p}^{6}}\,3{{d}^{6}}\,4{{s}^{1}}\] done
clear
D)
\[1{{s}^{2}}\,2{{s}^{2}}\,2{{p}^{6}}\,3{{s}^{2}}3{{p}^{6}}\,3{{d}^{10}}\,4{{s}^{1}}\,4{{p}^{6}}\] done
clear
View Solution play_arrow
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question_answer109)
The elements indicating following atomic numbers belong to same group [RPMT 1997]
A)
11 and 37 done
clear
B)
19 and 15 done
clear
C)
39 and 88 done
clear
D)
None of these done
clear
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question_answer110)
Elements in which \[4f\] orbitals are progressively filled are called as [MP PET 1996]
A)
Transition elements done
clear
B)
Lanthanides done
clear
C)
Actinides done
clear
D)
Inert gases done
clear
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question_answer111)
Hydrogen can be put in halogen group because [RPMT 2000]
A)
It has deuterium and tritium as isotopes done
clear
B)
It forms hydrides like chlorides done
clear
C)
It contains one electron only done
clear
D)
It is light done
clear
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question_answer112)
In the main group elements (i) as we proceed down the same group in the periodic table and (ii) as we proceed from left to right in the same period, the atomic radius
A)
(i) Increase continuously; (ii) Decreases continuously done
clear
B)
(i) Decreases continuously; (ii) Increases continuously done
clear
C)
(i) Increases continuously; (ii) Decreases upto the group IV and then increases upto the end of the period. done
clear
D)
(i) Decreases continuously; (ii) Decreases upto the group IV and then increases upto the end of the period. done
clear
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question_answer113)
Cause of diagonal relationship is
A)
Similar electronic configuration of the elements done
clear
B)
Similar \[e/r\] ratio of the elements done
clear
C)
Same number of valency electrons in the elements done
clear
D)
Same atomic weights of the elements done
clear
View Solution play_arrow
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question_answer114)
From which of the following the hydration energy of \[M{{g}^{2+}}\] is larger [MP PET 2000]
A)
\[N{{a}^{+}}\] done
clear
B)
\[A{{l}^{3+}}\] done
clear
C)
\[B{{e}^{2+}}\] done
clear
D)
\[C{{r}^{3+}}\] done
clear
View Solution play_arrow
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question_answer115)
Group comprising of all metals is [RPET 2000]
A)
IIIA done
clear
B)
IVA done
clear
C)
VIIA done
clear
D)
IIA done
clear
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question_answer116)
Whose name is not associated with the development of Periodic Table [DCE 1999]
A)
Prout?s done
clear
B)
Newlands done
clear
C)
Rutherford done
clear
D)
Loother Meyer done
clear
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question_answer117)
Element of atomic number 23 is placed in the periodic table in [MP PMT 1996]
A)
s - block done
clear
B)
p - block done
clear
C)
d - block done
clear
D)
f - block done
clear
View Solution play_arrow
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question_answer118)
In which of the following groups all the three members are of the alkaline earth metals family
A)
\[Al,\,Sr,\,Ti\] done
clear
B)
\[Li,\,Na,\,K\] done
clear
C)
\[Mg,\,Ba,\,Ca\] done
clear
D)
\[Rb,\,Cs,\,Fr\] done
clear
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question_answer119)
Astatine is a [RPET 2000]
A)
Halogen done
clear
B)
Rare earth element done
clear
C)
Alkaline earth metal done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer120)
The nitride ion in lithium nitride is composed of [CBSE PMT 2001]
A)
\[7P+7e\] done
clear
B)
\[10P+7e\] done
clear
C)
\[7P+10e\] done
clear
D)
\[10P+10e\] done
clear
View Solution play_arrow
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question_answer121)
Which set has the same number of unpaired electrons in their ground state [JIPMER 2000]
A)
\[C{{l}^{-}},F{{e}^{3+}},C{{r}^{3+}}\] done
clear
B)
\[N{{a}^{+}}\], \[M{{g}^{2+}}\], \[Al\] done
clear
C)
\[Na,\,P,\,\,Cl\] done
clear
D)
\[N,\,P,V\] done
clear
View Solution play_arrow
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question_answer122)
Which of the following doesn?t decompose on heating [AMU 2002]
A)
\[MgC{{O}_{3}}\] done
clear
B)
\[N{{a}_{2}}C{{O}_{3}}\] done
clear
C)
\[L{{i}_{2}}C{{O}_{3}}\] done
clear
D)
\[Ca\,{{(HC{{O}_{3}})}_{2}}\] done
clear
View Solution play_arrow
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question_answer123)
Which of the following has smallest bond angle [AMU 2002]
A)
\[{{H}_{2}}O\] done
clear
B)
\[N{{H}_{3}}\] done
clear
C)
\[C{{H}_{4}}\] done
clear
D)
\[C{{O}_{2}}\] done
clear
View Solution play_arrow
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question_answer124)
The metal-having highest melting point is [AMU 2002]
A)
Chromium done
clear
B)
Tungston done
clear
C)
Diamond done
clear
D)
Silver done
clear
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question_answer125)
The elements with atomic numbers 9, 17, 35, 53, 85 are all [KCET 2004]
A)
Noble gases done
clear
B)
Halogens done
clear
C)
Heavy metals done
clear
D)
Light metals done
clear
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question_answer126)
The atomic number of an element is derived from [Kerala PMT 2004]
A)
Number of electrons done
clear
B)
Number of protons done
clear
C)
Number of neutrons done
clear
D)
Number of isotopes done
clear
E)
Number of nucleons done
clear
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question_answer127)
Beryllium shows diagonal relationship with [Pb.CET 2003]
A)
Mg done
clear
B)
Na done
clear
C)
B done
clear
D)
Al done
clear
View Solution play_arrow
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question_answer128)
Which of the properties remains unchanged on descending a group in the periodic table [MP PMT 1997; RPMT 2002]
A)
Atomic size done
clear
B)
Density done
clear
C)
Valence electrons done
clear
D)
Metallic character done
clear
View Solution play_arrow
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question_answer129)
Which of the following element does not occur in liquid form [RPMT 2002]
A)
Hg done
clear
B)
Li done
clear
C)
Ga done
clear
D)
Br done
clear
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question_answer130)
The cause of periodicity of properties is
A)
Increasing atomic radius done
clear
B)
Increasing atomic weights done
clear
C)
Number of electrons in the valency orbit done
clear
D)
The re-occurrence of similar outer electronic configuration done
clear
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question_answer131)
The chemistry of lithium is very similar to that of magnesium even though they are placed in different groups [NCERT 1982]
A)
Both are found together in nature done
clear
B)
Both have nearly the same size done
clear
C)
Both have similar electronic configuration done
clear
D)
The ratio of their charge to size is nearly the same done
clear
View Solution play_arrow