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question_answer1)
Which of the following statement is correct with respect to the property of elements with an increase in atomic number in the carbon family (group 14) [BHU 2004]
A)
Atomic size decrease done
clear
B)
Ionization energy increase done
clear
C)
Metallic character decrease done
clear
D)
Stability of +2 oxidation state increase done
clear
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question_answer2)
The pair of amphoteric hydroxides is [AIIMS 2005]
A)
\[Al{{(OH)}_{3}},\ LiOH\] done
clear
B)
\[Be{{(OH)}_{2}},\ Mg{{(OH)}_{2}}\] done
clear
C)
\[B{{(OH)}_{3}},\ Be{{(OH)}_{2}}\] done
clear
D)
\[Be{{(OH)}_{2}},\ Zn{{(OH)}_{2}}\] done
clear
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question_answer3)
Which of the following oxides is amphoteric in character [AIEEE 2005]
A)
\[CaO\] done
clear
B)
\[C{{O}_{2}}\] done
clear
C)
\[Si{{O}_{2}}\] done
clear
D)
\[Sn{{O}_{2}}\] done
clear
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question_answer4)
Which has highest melting point [RPMT 1997]
A)
\[LiCl\] done
clear
B)
\[BeC{{l}_{2}}\] done
clear
C)
\[BC{{l}_{3}}\] done
clear
D)
\[CC{{l}_{4}}\] done
clear
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question_answer5)
Arrange \[S,\,O\] and \[Se\] in ascending order of electron affinity [Roorkee 1990]
A)
Se < S < O done
clear
B)
Se < O < S done
clear
C)
S < O < Se done
clear
D)
S < Se < O done
clear
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question_answer6)
Which of the following is not the correct increasing order of ionisation energy [RPMT 2000]
A)
\[C{{l}^{-}}<Ar<{{K}^{+}}\] done
clear
B)
\[Au<Ag<Cu\] done
clear
C)
\[Cs<Rb<K\] done
clear
D)
\[K<Ca<Sc\] done
clear
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question_answer7)
In which of the following arrangements the order is NOT according to the property indicated against it [AIEEE 2005]
A)
\[A{{l}^{3+}}<M{{g}^{2+}}<N{{a}^{+}}<{{F}^{-}}\] : Increasing ionic size done
clear
B)
\[B<C<N<O\] : Increasing first ionization enthalpy done
clear
C)
\[I<Br<F<Cl\] : Increasing electron gain enthalpy (with negative sign) done
clear
D)
\[Li<Na<K<Rb\] : Increasing metallic radius done
clear
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question_answer8)
Which element has the greatest tendency to loose electrons [NCERT 1980]
A)
F done
clear
B)
S done
clear
C)
Fe done
clear
D)
Be done
clear
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question_answer9)
Strongest acid is [RPMT 1997]
A)
\[A{{l}_{2}}{{O}_{3}}\] done
clear
B)
\[MgO\] done
clear
C)
\[N{{a}_{2}}O\] done
clear
D)
\[CaO\] done
clear
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question_answer10)
Which one of the following arrangements represents the correct order of electron gain enthalpy (with negative sign) of the given atomic species [CBSE PMT 2005]
A)
\[Cl<F<S<O\] done
clear
B)
\[O<S<F<Cl\] done
clear
C)
\[S<O<Cl<F\] done
clear
D)
\[F<Cl<O<S\] done
clear
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question_answer11)
Increasing order of electronegativity is [RPET 2003]
A)
\[Bi<P<S<Cl\] done
clear
B)
\[P<Bi<S<Cl\] done
clear
C)
\[S<Bi<P<Cl\] done
clear
D)
\[Cl<S<Bi<P\] done
clear
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question_answer12)
What will be the order of Ist ionisation energy [BHU 2005]
A)
Li > Na > K done
clear
B)
K > Li > Na done
clear
C)
Na > Li > K done
clear
D)
Li > K > Na done
clear
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question_answer13)
Which of the following configurations represents atoms of the elements having the highest second ionization energy [Pb. PMT 1998]
A)
\[1{{s}^{2}}2{{s}^{2}}2{{p}^{4}}\] done
clear
B)
\[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}\] done
clear
C)
\[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{1}}\] done
clear
D)
\[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}\] done
clear
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question_answer14)
The first ionization potentials in electron volts of nitrogen and oxygen atoms are respectively given by [IIT 1987]
A)
14.6, 13.6 done
clear
B)
13.6, 14.6 done
clear
C)
13.6, 13.6 done
clear
D)
14.6, 14.6 done
clear
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question_answer15)
The elements which occupy the peaks of ionisation energy curve, are [CBSE 2000]
A)
\[Na,\,\,K,\,\,Rb,\,Cs\] done
clear
B)
\[Na,\,\,Mg,\,\,Cl,\,\,I\] done
clear
C)
\[Cl,\,\,Br,\,\,I,\,F\] done
clear
D)
\[He,\,\,Ne,\,\,Ar,\,\,Kr\] done
clear
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question_answer16)
Which is the correct order of ionic sizes (At. No. : Ce = 58, Sn = 50, Yb = 70 and Lu = 71) [AIEEE 2002]
A)
\[Ce>Sn>Yb>Lu\] done
clear
B)
\[Sn>Ce>Lu>Yb\] done
clear
C)
\[Lu>Yb>Sn>Ce\] done
clear
D)
\[Sn>Yb>Ce>Lu\] done
clear
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question_answer17)
A sudden large jump between the values of second and third ionisation energies of an element would be associated with the electronic configuration [CBSE PMT 1992; AFMC 1998; CPMT 1999]
A)
\[1{{s}^{2}},\,2{{s}^{2}}{{p}^{6}},\,3{{s}^{1}}\] done
clear
B)
\[1{{s}^{2}},\,2{{s}^{2}}{{p}^{6}},\,3{{s}^{2}}{{p}^{1}}\] done
clear
C)
\[1{{s}^{2}},\,2{{s}^{2}}{{p}^{6}},\,3{{s}^{2}}{{p}^{2}}\] done
clear
D)
\[1{{s}^{2}},\,2{{s}^{2}}{{p}^{6}},\,3{{s}^{2}}\] done
clear
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question_answer18)
Which element having following electronic configurations has minimum ionization potential [NCERT 1978; KCET 1991; CBSE PMT 1991; Pb. PET 1999; BHU 2000]
A)
\[1{{s}^{1}}\] done
clear
B)
\[1{{s}^{2}},\,2{{s}^{2}}\,2{{p}^{6}}\] done
clear
C)
\[1{{s}^{2}},\,2{{s}^{2}}\,2{{p}^{6}},\,3{{s}^{1}}\] done
clear
D)
\[1{{s}^{2}},\,2{{s}^{2}}\,2{{p}^{2}}\] done
clear
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question_answer19)
Arrange F, Cl, O, N in the decreasing order of electronegativity
A)
\[O>F>N>Cl\] done
clear
B)
\[F>N>Cl>O\] done
clear
C)
\[Cl>F>N>O\] done
clear
D)
\[F>O>N\,\,\,>\]\[Cl\] done
clear
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question_answer20)
Ionic radii of [IIT-JEE 1999]
A)
\[T{{i}^{4+}}<M{{n}^{7+}}\] done
clear
B)
\[^{35}C{{l}^{-}}{{<}^{37}}C{{l}^{-}}\] done
clear
C)
\[{{K}^{+}}>C{{l}^{-}}\] done
clear
D)
\[{{P}^{3+}}>{{P}^{5+}}\] done
clear
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question_answer21)
Which of the following have high electron affinity [BHU 2000, 05]
A)
F done
clear
B)
Cl done
clear
C)
N done
clear
D)
O done
clear
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question_answer22)
In which block 106th element belongs [DCE 2000]
A)
s-block done
clear
B)
p-block done
clear
C)
d-block done
clear
D)
f-block done
clear
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