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1

NEET 2016 Phase 2

MCQ (Single Correct Answer)
Among the following, which one is a wrong statement ?
A
PH5 and BiCl5 do not exist.
B
p$$\pi $$-d$$\pi $$ bonds are present in SO2.
C
SeF4 and CH4 have same shape.
D
I3+ has bent geometry.

Explanation

2

NEET 2016 Phase 2

MCQ (Single Correct Answer)
The correct geometry and hybridization for XeF4 are
A
octahedral, sp3d2
B
trigonal bipyramidal, sp3d
C
planar triangle, sp3d3
D
square planar, sp3d2

Explanation



sp3d2 hybridisation (octahedral geometry, square planar shape)
3

NEET 2016 Phase 2

MCQ (Single Correct Answer)
The hybridizations of atomic orbitals of nitrogen in NO$$_2^ + $$, NO$$_3^ - $$  and  NH$$_4^ + $$  respectively are
A
sp, sp3 and sp2
B
sp2, sp3 and sp3
C
sp, sp2 and sp3
D
sp2, sp and sp3

Explanation

X = $$1 \over 2$$ (VE + MA - c + a)

For $$NO^+_2$$, X = $$1 \over 2$$ (5 + 0 - 1) = 2, so sp hybridisation

For $$NO^-_3$$, X = $$1 \over 2$$ (5 + 0 + 1) = 3, so sp2 hybridisation

For $$NH^+_4$$, X = $$1 \over 2$$ (5 + 4 - 1) = 4, so sp3 hybridisation

4

NEET 2016 Phase 2

MCQ (Single Correct Answer)
Which one of the following compounds shows the presence of intramolecular hydrogen bond?
A
H2O2
B
HCN
C
Cellulose
D
Concentrated acetic acid

Explanation

H2O2, HCN and conc. CH3COOH form intermolecular hydrogen bonding while cellulose has intramolecular hydrogen bonding.

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