JEE Main Chemistry question

That acetylene is a linear molecule is shown by

(A)Its CC bond distance being 1.21 Å
(B)Its C–H bond distance being 1.08 Å
(C)Its H–C–C bond angle being 180°
(D)All of the aboveCorrect

Answer: (D)

Solution

Acetylene's two -hybridised carbons each form two collinear -bonds (to the other carbon and to one H), giving bond angles of exactly 180° — a linear molecule;

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Question ID VK-142401