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The number of sigma and pi-bonds in 1-butene-yne are: (a) 5 sigma and 5 pi (b) 7 sigma and 3 pi (c) 8 sigma and 2dpi (d) 5 sigma and 4 pi

The number of sigma and pi-bonds in 1-butene-yne are:
(a) 5 sigma and 5 pi
(b) 7 sigma and 3 pi
(c) 8 sigma and 2dpi
(d) 5 sigma and 4 pi

Grade:11

1 Answers

Kevin Nash
askIITians Faculty 332 Points
7 years ago

(b). CH2 = CH – C = CH;

No of s bonds = 2 + 1 + 1 + 1 / 1 + 1 = 7;

No of p bonds = 1 + 2 = 3

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