General Organic ChemistryHard
Question
The number of sigma and pi-bonds in 1-butene-3-yne are :
Options
A.5 sigma and 5 pi
B.7 sigma and 3 pi
C.8 sigma and 2 pi
D.6 sigma and 4 pi
Solution
Total σ - bond = 7 (3σ - bonds C - C, 4σ - bonds C - H)
Total π - bond = 3(1 in C = C bond 2 in C ≡ C bond)
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