Tetravalency of Carbon: Shapes of Simple Molecules NEET Questions

Organic Chemistry - Some Basic Principles of Organic Chemistry

Tetravalency of Carbon: Shapes of Simple Molecules MCQ Questions


13.
The shape of HC≡N (hydrogen cyanide) is:
A.
Trigonal planar
B.
Bent
C.
Linear
D.
Tetrahedral
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ANSWER :
C. Linear
14.
The hybridisation of carbon atoms in CH₃CH=CHCN respectively is:
A.
sp³, sp², sp², sp
B.
sp, sp², sp², sp³
C.
sp³, sp³, sp², sp
D.
sp², sp², sp², sp
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ANSWER :
A. sp³, sp², sp², sp
15.
Which of the following molecules contains carbon atoms with all three types of hybridisation (sp, sp², sp³)?
A.
CH₂=CH–C≡CH
B.
CH₃–CH₂–CH₃
C.
CH₂=CH–CH=CH₂
D.
CH₃–CH=CH–C≡C–CH₃
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ANSWER :
D. CH₃–CH=CH–C≡C–CH₃
16.
The bond angle in methane (CH₄) is approximately:
A.
90°
B.
109.5°
C.
120°
D.
180°
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ANSWER :
B. 109.5°
17.
In HCONH₂ (formamide), the hybridisation of the carbon atom is:
A.
dsp²
B.
sp³
C.
sp²
D.
sp
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ANSWER :
C. sp²
18.
The shape of formaldehyde (H₂C=O) molecule is:
A.
Linear
B.
Pyramidal
C.
Tetrahedral
D.
Trigonal planar
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ANSWER :
D. Trigonal planar