A) \[7\sigma ,\,3\pi \]
B) \[5\sigma ,\,2\pi \]
C) \[8\sigma ,3\pi \]
D) \[6\sigma ,2\pi \]
Correct Answer: A
Solution :
\[\underset{7\sigma ,\,3\pi }{\mathop{C{{H}_{2}}=CH-C\equiv CH}}\,\]
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