JEE Main Chemistry question

Acetylenic hydrocarbons are acidic because

(A)The -electron density of the C–H bond in a terminal alkyne is held nearer a carbon with 50% -characterCorrect
(B)Acetylene has only one hydrogen atom at each carbon atom
(C)Acetylene contains the least number of hydrogen atoms among comparable hydrocarbons
(D)Acetylene belongs to the class of alkynes with formula CH

Answer: (A)

Solution

The -hybridised carbon of a terminal alkyne has 50% -character, holding the bonding electrons of the C–H bond closer to the carbon

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Question ID VK-142570