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Question

How many sigma and pi bonds are present in the following molecule given below:


HCCCH=CHCH3

A
sigma CC bonds =4, sigma CH bonds =6, pi C-C bonds =3
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B
sigma CC bonds =5, sigma CH bonds =6, pi CC bonds =2
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C
sigma CC bonds =4, sigma CH bonds =2, pi CC bonds =5
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D
sigma CC bonds=4, sigma CH bonds =4, pi CCbonds =4
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Solution

The correct option is A sigma CC bonds =4, sigma CH bonds =6, pi C-C bonds =3
A triple bond contains 1 sigma and 2 pi bond and a double bond contains 1 sigma and 1 pi bond.

πBonds=2+1=3

σ(CC)=4

σ(CH)=6

Hence, option A is correct.

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