1
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
In electrolysis of NaCl when Pt electrode is taken then H2 is liberated at cathode while with Hg cathode it forms sodium amalgam
A
Hg is more inert than Pt
B
More voltage is required to reduce H+ at Hg than at Pt
C
Na is dissolved in Hg while it does not dissolve in Pt
D
Conc. of H+ ions is larger when Pt electrode is taken.
2
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
Which of the following statement is true?
A
Silicon exhibits 4 coordination number in its compound.
B
Bond energy of F2 is less than Cl2.
C
Mn(III) oxidation state is more stable than Mn(II) in aqueous state.
D
Elements of 15th group shows only + 3 and +5 oxidation states.
3
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
Which of the following order is wrong?
A
NH3 < PH3 < AsH3 $$-$$ acidic
B
Li < Be < B < C $$-$$ 1st IP
C
Al2O3 < MgO < Na2O < K2O $$-$$ basic
D
Li+ < Na+ < K+ < Cs+ $$-$$ ionic radius.
4
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
General electronic configuration of lanthanides is
A
$$\left( {n - 2} \right){f^{1 - 14}}\,\left( {n - 1} \right){s^2}{p^6}{d^{0 - 1}}\,n{s^2}$$
B
$$\left( {n - 2} \right){f^{0 - 14}}\,\left( {n - 1} \right){d^{0 - 1}}\,n{s^2}$$
C
$$\left( {n - 2} \right){f^{0 - 14}}\,\left( {n - 1} \right){d^{10}}\,n{s^2}$$
D
$$\left( {n - 2} \right){d^{0 - 1}}\left( {n - 1} \right)\,{f^{1 - 14}}\,n{s^2}$$
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