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JEE Main levelNumerical answerDifficulty 2 of 3cb069

Find the number of sigma bonds in the molecule $CH X_{2} = CH - C \equiv C - CH X_{3}$ . Give the answer as an integer.

Numerical answer type, tolerance 0.5.

Answer: 10

Count sigma bonds: C-H bonds number

2 + 1 + 0 + 0 + 3 = 6

, and each of the 4 carbon-carbon linkages contributes one sigma bond. Total

= 6 + 4 = 10

(the pi bonds, 1 + 2 = 3, are not counted).

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