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The number of sigma (σ) and pi (π) bonds in pent-2-en-4-yne is 10σ bonds and 3π bonds

SbistudyPosted oninchemistry, chemistry

Question : The number of sigma (σ) and pi (π) bonds in pent-2-en-4-yne is

(1) 10σ bonds and 3π bonds.
(2) 8σ bonds and 5π bonds.
(3) 11σ bonds and 2π bonds.
(4) 13σ bonds and no π bonds.
answer : from all above options the correct answer is “(1) 10σ bonds and 3π bonds.” it means in pent-2-en-4-yne 10σ bonds and 3π bonds are found. The number of σ and π bonds in pent-2-en-4-yne is 10 and 3 respectively.
The structure of pent-2-en-4-yne is shown in below and the 10σ bonds and 3π bonds are counted by counting number shown on structure here –
in short we can say that –
sigma (σ) bonds = 10σ bonds
pi (π) bonds  = 3π bonds

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