1
NEET 2017
MCQ (Single Correct Answer)
+4
-1
It is because of inability of ns2 electrons of the valence shell to participate in bonding that
A
Sn2+ is oxidising while Pb4+ is reducing
B
Sn2+ and Pb2+ are both oxidising and reducing
C
Sn4+ is reducing while Pb4+ is oxidising
D
Sn2+ is reducing while Pb4+ is oxidising
2
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Match the interhalogen compounds of column-I with the geometry in column-II and assign the correct code.

Column $${\rm I}$$ Column $${\rm I}$$$${\rm I}$$
(A) XX' (i) T-shape
(B) XX'3 (ii) Pentagonal bipyramidal
(C) XX'5 (iii) Linear
(D) XX'7 (iv) Square pyramidal
(v) Tetrahedral
A
(A) $$ \to $$ (iii);  (B) $$ \to $$ (i);  (C) $$ \to $$ (iv);  (D) $$ \to $$ (ii)
B
(A) $$ \to $$ (v);  (B) $$ \to $$ (iv);  (C) $$ \to $$ (iii);  (D) $$ \to $$ (ii)
C
(A) $$ \to $$ (iv);  (B) $$ \to $$ (iii);  (C) $$ \to $$ (ii);  (D) $$ \to $$ (i)
D
(A) $$ \to $$ (iii);  (B) $$ \to $$ (iv);  (C) $$ \to $$ (i);  (D) $$ \to $$ (ii)
3
NEET 2017
MCQ (Single Correct Answer)
+4
-1
In which pair of ions both the species contain S $$-$$ S bond?
A
S4O62$$-$$, S2O32$$-$$
B
S2O72$$-$$, S2O82$$-$$
C
S4O62$$-$$, S2O72$$-$$
D
S2O72$$-$$, S2O32$$-$$
4
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
Boric acid is an acid because its molecule
A
contains replaceable H+ ion
B
gives up a proton
C
accepts OH$$-$$ from water releasing proton
D
combines with proton from water molecule.
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