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question_answer1)
In modern periodic table, elements are arranged in
A)
increasing order of atomic mass done
clear
B)
increasing order of atomic volumes done
clear
C)
increasing order of atomic number done
clear
D)
increasing order of electron affinity done
clear
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question_answer2)
Tenth element in periodic table resembles with the
A)
first done
clear
B)
second done
clear
C)
fourth done
clear
D)
ninth done
clear
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question_answer3)
In the long term of periodic table, all the non- metals are placed in
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_answer4)
The cause of periodicity of properties is
A)
Increasing atomic radius done
clear
B)
Increasing atomic weight done
clear
C)
Number of electrons in the valency orbit done
clear
D)
The recurrence of similar outer electronic configuration done
clear
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question_answer5)
Highest ionization potential in a period is shown by
A)
alkali metals done
clear
B)
transition elements done
clear
C)
halogens done
clear
D)
noble gases done
clear
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question_answer6)
The properties of the elements, as well as the formulae and properties of their compounds depend in a periodic manner on the atomic weights of the elements. This periodic law was given by
A)
J. L. Meyer done
clear
B)
John A.R. Newlands done
clear
C)
Dernier done
clear
D)
D.I. Mendeleev done
clear
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question_answer7)
Elements belonging to the same group have similar properties because
A)
they have similar electronic configuration of the outermost shell done
clear
B)
their atomic numbers go on increasing as we move down the group done
clear
C)
all of them are metallic elements done
clear
D)
none of the above done
clear
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question_answer8)
With the increase in atomic number in period
A)
metallic character decreases done
clear
B)
metallic character increases done
clear
C)
chemical reactivity decreases done
clear
D)
chemical reactivity increases done
clear
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question_answer9)
On descending a group, electropositive character of elements
A)
increases done
clear
B)
decreases done
clear
C)
remain same done
clear
D)
None of these done
clear
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question_answer10)
Which of the following elements has highest first ionization potential?
A)
C done
clear
B)
N done
clear
C)
B done
clear
D)
O done
clear
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question_answer11)
Ionization potential in a period is lowest for
A)
halogens done
clear
B)
inert gases done
clear
C)
alkali metals done
clear
D)
alkaline earth elements done
clear
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question_answer12)
The law of triads is applicable to
A)
\[C,N,O\] done
clear
B)
\[Na,K,Rb\] done
clear
C)
\[Cl,Br,I\] done
clear
D)
None of these done
clear
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question_answer13)
The atoms of elements belonging to the same group of periodic table have the same number of
A)
protons done
clear
B)
electrons done
clear
C)
neutrons done
clear
D)
electrons in the outermost Shell done
clear
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question_answer14)
Order of relative size amongst the .following is
A)
\[Li<Na<K\] done
clear
B)
\[C>Si<Al\] done
clear
C)
\[Mg>Al<Na\] done
clear
D)
\[F>Cl<Br\] done
clear
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question_answer15)
The correct order of relative sizes is
A)
\[{{I}^{-}}>{{I}^{+}}<I\] done
clear
B)
\[{{I}^{-}}>I<{{I}^{+}}\] done
clear
C)
\[I>{{I}^{+}}<{{I}^{-}}\] done
clear
D)
\[{{I}^{+}}>{{I}^{-}}<I\] done
clear
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question_answer16)
Elements of IA group give colour in Bunsen burner flame, because of
A)
low ionization potential done
clear
B)
low melting point done
clear
C)
softness done
clear
D)
all of these done
clear
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question_answer17)
In the periodic table, the element with atomic number 6 will be in
A)
second period done
clear
B)
third period done
clear
C)
fourth period done
clear
D)
fifth period done
clear
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question_answer18)
In the periodic table, with the increase in atomic number the metallic character of an element
A)
decreases in a period and increases in a group done
clear
B)
increases in a period and decreases in a group done
clear
C)
increases both in period and group done
clear
D)
decreases both in period and group done
clear
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question_answer19)
Which one of the following has the smallest size?
A)
\[Al\] done
clear
B)
\[A{{l}^{+}}\] done
clear
C)
\[A{{l}^{+2}}\] done
clear
D)
\[A{{l}^{+3}}\] done
clear
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question_answer20)
On moving horizontally across a period, the number of electrons in the outermost shell increases from ...... to ......
A)
2, 8 done
clear
B)
2,18 done
clear
C)
1, 8 done
clear
D)
1,18 done
clear
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question_answer21)
Elements of same group in the periodic table are characterised by the same
A)
ionization potential done
clear
B)
electronegativity done
clear
C)
electron affinity done
clear
D)
number of valency electrons done
clear
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question_answer22)
In the modern periodic table, VI period contains
A)
32 elements done
clear
B)
8 elements done
clear
C)
18 elements done
clear
D)
36 elements done
clear
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question_answer23)
Which of the following pairs has both elements from the same group?
A)
\[Mg,Ra\] done
clear
B)
\[Mn,Cl\] done
clear
C)
\[Mg,Cu\] done
clear
D)
\[Mg,Cl\] done
clear
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question_answer24)
Most of the known elements are
A)
non-metals done
clear
B)
metals done
clear
C)
transition elements done
clear
D)
metalloids done
clear
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question_answer25)
Pair having elements from same period is
A)
Na, Ca done
clear
B)
Na, Cl done
clear
C)
Ca, Cl done
clear
D)
Cl, Br done
clear
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question_answer26)
The element with the largest size in the second period is
A)
lithium done
clear
B)
fluorine done
clear
C)
sodium done
clear
D)
oxygen done
clear
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question_answer27)
The element with the smallest size in the group 13 is
A)
beryllium done
clear
B)
carbon done
clear
C)
aluminium done
clear
D)
boron done
clear
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question_answer28)
Which of the following is not a noble gas?
A)
Helium done
clear
B)
Xenon done
clear
C)
Radium done
clear
D)
Radon done
clear
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question_answer29)
The property generally decrease along a period is
A)
Ionization energy done
clear
B)
Eleptroa, affinity done
clear
C)
Metallic character done
clear
D)
Valency done
clear
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question_answer30)
Which of the following sets of elements has strongest tendency to form anions?
A)
\[\text{As},\text{ Se},\text{ Br}\] done
clear
B)
\[P,S,Cl\] done
clear
C)
\[N,O,F\] done
clear
D)
\[Sb,Te,I\] done
clear
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question_answer31)
Element having almost zero electronegativity is
A)
\[F\] done
clear
B)
O done
clear
C)
N done
clear
D)
\[Xe\] done
clear
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question_answer32)
Pair of elements having same number of valency electrons is
A)
N, 0 done
clear
B)
Na, Ca done
clear
C)
As, Bi done
clear
D)
Pb, Sb done
clear
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question_answer33)
Maximum work in periodic table related with atomic number was done by
A)
Mendeleev done
clear
B)
Aston done
clear
C)
Mosley done
clear
D)
Newland done
clear
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question_answer34)
The element with highest electron affinity in the periodic table is
A)
iodine done
clear
B)
chlorine done
clear
C)
fluorine done
clear
D)
oxygen done
clear
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question_answer35)
Which of the following hydroxides is most basic?
A)
\[Be{{(OH)}_{2}}\] done
clear
B)
\[Ba{{(OH)}_{2}}\] done
clear
C)
\[Ca{{(OH)}_{2}}\] done
clear
D)
\[Mg{{(OH)}_{2}}\] done
clear
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question_answer36)
The element with atomic number 9 resembles with the element having atomic number
A)
8 done
clear
B)
17 done
clear
C)
36 done
clear
D)
27 done
clear
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question_answer37)
The element with smallest size in the 4th period is
A)
chlorine done
clear
B)
iodine done
clear
C)
fluorine done
clear
D)
bromine done
clear
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question_answer38)
Whose name is associated with the development of periodic table?
A)
Newlands done
clear
B)
Mendeleev done
clear
C)
Dalton done
clear
D)
Doberiener done
clear
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question_answer39)
Which of the following configurations represent the metallic element?
A)
2, 8, 8 done
clear
B)
2, 8, 7 done
clear
C)
2, 8, 2 done
clear
D)
2, 8, 4 done
clear
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question_answer40)
The element with configuration \[\text{1}{{\text{s}}^{\text{2}}},\text{ 2}{{\text{s}}^{\text{2}}},\text{ 2}{{\text{p}}^{\text{6}}},\text{ 3}{{\text{s}}^{\text{2}}}\] would be
A)
a metal done
clear
B)
a non-metal done
clear
C)
a inert gas done
clear
D)
a metalloid done
clear
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question_answer41)
A neutral atom will have lowest ionization potential when its electronic configuration is
A)
\[\text{1}{{\text{s}}^{\text{1}}}\] done
clear
B)
\[\text{1}{{\text{s}}^{\text{2}}},\text{ 2}{{\text{s}}^{\text{2}}},\text{ 2}{{\text{p}}^{\text{6}}}\] done
clear
C)
\[\text{1}{{\text{s}}^{\text{2}}},\text{ 2}{{\text{s}}^{\text{2}}},\text{ 2}{{\text{p}}^{\text{2}}}\] done
clear
D)
\[\text{1}{{\text{s}}^{\text{2}}},\text{ 2}{{\text{s}}^{\text{2}}},\text{ 2}{{\text{p}}^{\text{6}}},\text{ 3}{{\text{s}}^{\text{2}}},\text{ 3}{{\text{p}}^{\text{6}}}\] done
clear
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question_answer42)
The elements of the group 16 are also called
A)
halogens done
clear
B)
noble gases done
clear
C)
chalcogens done
clear
D)
alkaline earth metals done
clear
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question_answer43)
Most metallic element in the fifth period is
A)
silver done
clear
B)
rubidium done
clear
C)
gold done
clear
D)
rhodium done
clear
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question_answer44)
Two elements that have similar properties because they have the same number of valence electrons are
A)
\[C\,\,and\,\,Cl\] done
clear
B)
\[Ca\,\,and\,\,Ga\] done
clear
C)
\[Si\,\,and\,S\] done
clear
D)
\[S\,\,and\,O\] done
clear
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question_answer45)
In the periodic table from left to right in a period the atomic volume
A)
decreases done
clear
B)
increases done
clear
C)
remains same done
clear
D)
first decreases then increases done
clear
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question_answer46)
Which of the following elements has highest atomic radius?
A)
\[Mg\] done
clear
B)
\[Si\] done
clear
C)
\[Al\] done
clear
D)
\[P\] done
clear
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question_answer47)
Which has greatest radius of the following?
A)
\[{{\text{H}}^{-}}\] done
clear
B)
\[{{F}^{-}}\] done
clear
C)
\[I\] done
clear
D)
\[{{I}^{-}}\] done
clear
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question_answer48)
Which one of the following is smallest in size?
A)
\[{{N}^{-3}}\] done
clear
B)
\[{{O}^{-2}}\] done
clear
C)
\[{{F}^{-}}\] done
clear
D)
\[N{{a}^{+}}\] done
clear
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question_answer49)
The elements with atomic numbers 2, 10,18,36 54 and 86 are all
A)
light metals done
clear
B)
halogens done
clear
C)
rare earths done
clear
D)
noble gases done
clear
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question_answer50)
Which of the following remains unchanged on descending a group in the periodic table?
A)
Valence electrons done
clear
B)
Atomic size done
clear
C)
Density done
clear
D)
Metallic character done
clear
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question_answer51)
Which of the following has zero electron affinity?
A)
Radon done
clear
B)
Nitrogen done
clear
C)
Oxygen done
clear
D)
Radium done
clear
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question_answer52)
Beryllium resembles much with
A)
\[Zn\] done
clear
B)
\[Li\] done
clear
C)
\[Al\] done
clear
D)
\[Ra\] done
clear
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question_answer53)
Element having greatest tendency to lose electrons is
A)
\[S\] done
clear
B)
\[P\] done
clear
C)
\[Be\] done
clear
D)
\[Fe\] done
clear
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question_answer54)
Which of the following elements has highest electro negativity?
A)
\[Al\] done
clear
B)
\[S\] done
clear
C)
\[Si\] done
clear
D)
\[P\] done
clear
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question_answer55)
Which has least ionization potential?
A)
\[Li\] done
clear
B)
\[Cs\] done
clear
C)
\[I\] done
clear
D)
\[Cl\] done
clear
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question_answer56)
Increasing order of electro negativity of following elements is
A)
\[\text{C }<\text{ N }<\text{ Si }<\text{ P}\] done
clear
B)
\[\text{N }<\text{ Si }<\text{ C }<\text{ P}\] done
clear
C)
\[\text{Si }<\text{ P }<\text{ C }<\text{ N}\] done
clear
D)
\[\text{P }<\text{ Si }<\text{ N }<\text{ C}\] done
clear
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question_answer57)
The amount of energy released on the addition of an electron in outermost shell of an atom 1s called
A)
ionization energy done
clear
B)
hydration energy done
clear
C)
electron affinity done
clear
D)
electron negativity done
clear
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question_answer58)
The halogen (Group 17 elements)
A)
have an electron configuration of a noble gas less seven electrons done
clear
B)
are highly electro positive done
clear
C)
show variable oxidation state of \[-1,+1,+3,+5\]and +7 in their various compounds done
clear
D)
forms a volatile, covalent hydrides HX in which the halogen (X) shows an oxidation state of +1 done
clear
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question_answer59)
Electron affinity depend on
A)
Atomic size done
clear
B)
Nuclear charge done
clear
C)
Atomic number done
clear
D)
Both atomic size and nuclear charge. done
clear
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question_answer60)
Which of the following has highest electron, affinity?
A)
0 done
clear
B)
S done
clear
C)
Be done
clear
D)
B done
clear
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question_answer61)
The number of elements present in fifth period is
A)
18 done
clear
B)
32 done
clear
C)
8 done
clear
D)
24 done
clear
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question_answer62)
Electronic configuration \[\text{1}{{\text{s}}^{\text{2}}}\text{ 2}{{\text{p}}^{\text{2}}}\text{ 2p}{{\text{x}}^{\text{1}}}\text{ 2p}{{\text{y}}^{\text{1}}}\text{ 2p}{{\text{z}}^{\text{1}}}\] corresponds to
A)
N done
clear
B)
Cr done
clear
C)
0 done
clear
D)
F done
clear
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question_answer63)
Largest in size out of \[N{{a}^{+}}\], \[{{O}^{2-}}\] and \[{{F}^{-}}\] is
A)
\[N{{a}^{+}}\] done
clear
B)
\[{{O}^{2-}}\] done
clear
C)
\[{{F}^{-}}\] done
clear
D)
All are equal done
clear
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question_answer64)
The long form of periodic table is based on
A)
Shape of the atom done
clear
B)
Mass of the atom done
clear
C)
Atomic number of the atom done
clear
D)
Electro negativity done
clear
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question_answer65)
Gradual addition of electronic shell in the noble gases causes a decrease in their
A)
Ionization energy done
clear
B)
Atomic radius done
clear
C)
Boiling point done
clear
D)
Density done
clear
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question_answer66)
Which of the following ion is not isoelectronic With \[{{O}^{-2}}\] ?
A)
\[{{N}^{-3}}\] done
clear
B)
\[\text{N}{{\text{a}}^{+}}\] done
clear
C)
\[{{F}^{-}}\] done
clear
D)
\[T{{i}^{+3}}\] done
clear
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question_answer67)
A representative element that is metal is
A)
\[Zn\] done
clear
B)
\[Sr\] done
clear
C)
\[Fe\] done
clear
D)
\[Cu\] done
clear
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question_answer68)
Which of the following does not exhibit the periodicity in properties of the elements?
A)
Ionization energy done
clear
B)
N/P ratio done
clear
C)
Electro negativity done
clear
D)
Atomic radius done
clear
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question_answer69)
Heaviest atom among the following is
A)
uranium done
clear
B)
lead done
clear
C)
mercury done
clear
D)
radium done
clear
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question_answer70)
Variable valency in general is shown by
A)
gaseous elements done
clear
B)
non-metals done
clear
C)
s-block elements done
clear
D)
d-block elements done
clear
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question_answer71)
Which of the following shows highest magnetic moment?
A)
\[C{{O}^{+3}}\] done
clear
B)
\[C{{r}^{+3}}\] done
clear
C)
\[F{{e}^{+3}}\] done
clear
D)
\[N{{i}^{+2}}\] done
clear
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question_answer72)
The correct order for decreasing atomic radius of the five atoms \[H,Br,I,He\,and\,S\] is
A)
\[I>Br>S>He\,>H\] done
clear
B)
\[I>S>Br>H\,>He\] done
clear
C)
\[I>S>Br>He\,>H\] done
clear
D)
\[Br>I>S>He\,>H\] done
clear
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question_answer73)
Size of the species\[Cl,C{{l}^{-}}and\,C{{l}^{+}}\]decreases as
A)
\[Cl>C{{l}^{+}}>C{{l}^{-}}\] done
clear
B)
\[C{{l}^{+}}>C{{l}^{-}}>Cl\] done
clear
C)
\[C{{l}^{-}}>C{{l}^{+}}>Cl\] done
clear
D)
\[C{{l}^{-}}>Cl>C{{l}^{+}}\] done
clear
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question_answer74)
Which of the following has the largest size?
A)
\[R{{b}^{+}}\] done
clear
B)
\[M{{g}^{+2}}\] done
clear
C)
\[L{{i}^{+}}\] done
clear
D)
\[B{{a}^{+2}}\] done
clear
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question_answer75)
Which of the following has the smallest size?
A)
\[{{I}^{-}}\] done
clear
B)
\[{{S}^{-2}}\] done
clear
C)
\[{{O}^{-2}}\] done
clear
D)
\[C{{l}^{-}}\] done
clear
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question_answer76)
The alkali metal which acts as a nutrient for plants is
A)
\[Na\] done
clear
B)
\[K\] done
clear
C)
\[Li\] done
clear
D)
\[Rb\] done
clear
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question_answer77)
Cat ion having maximum number of unpaired electrons is
A)
\[M{{n}^{+2}}\] done
clear
B)
\[F{{e}^{+2}}\] done
clear
C)
\[C{{O}^{+2}}\] done
clear
D)
\[N{{i}^{+2}}\] done
clear
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question_answer78)
When first ionization energy is plotted against the atomic number, then peaks in curve are occupied by
A)
halogens done
clear
B)
rare gases done
clear
C)
alkali metals done
clear
D)
transition elements done
clear
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question_answer79)
The elements of group 1 are called alkali metals because
A)
The metals are corroded by alkali done
clear
B)
Their oxides are alkaline done
clear
C)
Their hydrides are strongly alkaline done
clear
D)
None of these done
clear
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question_answer80)
Increasing order of ionization energy is
A)
\[\text{Be }<\text{ B }<\text{ C }<\text{ N}\] done
clear
B)
\[~\text{N }<\text{ C }<\text{ Be }<\text{ B}\] done
clear
C)
\[\text{B }<\text{ Be }<\text{ C }<\text{ N}\] done
clear
D)
\[\text{C }<\text{ N }<\text{ Be }<\text{ B}\] done
clear
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question_answer81)
Ionization potential is
A)
The tendency of an atom to lose an electron done
clear
B)
The tendency of an anion to lose electron done
clear
C)
The tendency of cation to gain electron done
clear
D)
The ratio of the cation to anion =radius done
clear
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question_answer82)
Which of the following salt is not soluble in water?
A)
\[{{K}_{2}}C{{O}_{3}}\] done
clear
B)
\[BaC{{O}_{3}}\] done
clear
C)
\[CaC{{l}_{2}}\] done
clear
D)
\[N{{a}_{2}}S{{O}_{4}}\] done
clear
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question_answer83)
Which of the following has the highest melting point?
A)
\[BeC{{l}_{2}}\] done
clear
B)
\[LiCl\] done
clear
C)
\[AlC{{l}_{3}}\] done
clear
D)
\[NaCl\] done
clear
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question_answer84)
Lanthanides and actinides are recognised as
A)
s- block element done
clear
B)
d-block element done
clear
C)
f-block element done
clear
D)
p-block element done
clear
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question_answer85)
Pair containing isoelectronic species is
A)
\[H,He\] done
clear
B)
\[N{{a}^{+}},Na\] done
clear
C)
\[Ne,{{F}^{-}}\] done
clear
D)
\[F,Cl\] done
clear
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question_answer86)
The most non-metallic element is
A)
Na done
clear
B)
He done
clear
C)
Cl done
clear
D)
F done
clear
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question_answer87)
The lightest metal in periodic table is
A)
Mg done
clear
B)
Zn done
clear
C)
Li done
clear
D)
Na done
clear
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question_answer88)
Which of the following has highest electro negativity?
A)
C done
clear
B)
Mg done
clear
C)
0 done
clear
D)
S done
clear
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question_answer89)
Element having atomic number 33 belongs to this group
A)
\[\text{III}\] done
clear
B)
\[\text{IV}\] done
clear
C)
\[\text{V}\] done
clear
D)
\[\text{VI}\] done
clear
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