1
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following has longest C$$-$$O bond length? (Free C$$-$$O bond length in CO is 1.128 $$\mathop A\limits^o $$.)
A
[Fe(CO)4]2$$-$$
B
[Mn(CO)6]+
C
Ni(CO)4
D
[Co(CO)4]$$-$$
2
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct statement regarding the comparison of staggered and eclipsed conformations of ethane, is
A
the eclipsed conformation of ethane is more stable than staggered conformation even through the eclipsed conformation has torsional strain
B
the staggered conformation of ethane is more stable than eclipsed conformation, because staggered conformation has no torsional strain
C
the staggered conformation of ethane is less stable than eclipsed conformation, because staggered conformation has torsional strain
D
the eclipsed conformation of ethane is more stable than stggered conformation, because eclipsed conformation has no torsional strain.
3
NEET 2016 Phase 1
MCQ (More than One Correct Answer)
+4
-1
Change Language
In which of the following options the order of arrangement does not agree with the variation of property indicated against it ?
A
I < Br < Cl < F (increasing electron gain enthalpy)
B
Li < Na < K < Rb (increasing metallic radius)
C
Al3+ < Mg2+ < Na+ < F$$-$$ (increasing ionic size)
D
B < C < N < O (increasing first ionisation enthalpy)
4
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language
Predict the correct order among the following :
A
bond pair - bond pair > long pair - bond pair > lone pair - lone pair
B
lone pair - bond pair > bond pair - bond pair > lone pair - lone pair
C
lone pair - lone pair > lone pair - bond pair > bond pair - bond pair
D
lone pair - lone pair > bond pair - bond pair > lone pair - bond pair
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