Published by:
CGP EDU Academic Team
Published on: August 12, 2026
The cylindrical shape of an alkyne is due to
A
two sigma 
and one 
bonds
and one bonds
B
one sigma 
and two 
bonds
and two bonds
C
three sigma 
bonds
bonds
D
three 
bonds.
bonds.
Text Solution
Verified by ExpertsThe correct answer is:
B
alkyne, two carbon atoms constituting the triple bond are sp‐hybridised.
Carbon undergoes 
‐hybridisation to form two 
‐hybrid orbitals. The two 
‐orbitals remain unhybridised. Hybrid orbitals form one sigma bond while two 
‐bonds are formed by unhybridised orbitals.
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