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Chemistry · Organic chemistry – some basic principles and techniques
हिन्दीWhat is the total number of \( \sigma \) (sigma) and \( \pi \) (pi) bonds respectively in the molecule penta-1,4-diyne, \( \text{HC}\equiv\text{C}-\text{CH}_2-\text{C}\equiv\text{CH} \)?
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Correct answer · Option C
8 and 4
Explanation
Number of \( \sigma \)-bonds = 4 \( \text{C}-\text{H} \) + 4 \( \text{C}-\text{C} \) = 8. Each triple bond contains 2 \( \pi \)-bonds, so total \( \pi \)-bonds = \( 2 \times 2 = 4 \).
