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  4. Assertion: Acetylene on reacting with sodamide gives sodium acetylide and ammonia. Reason: sp hybridised carbon atoms of acetylene are considerably electronegative.

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Q. Assertion: Acetylene on reacting with sodamide gives sodium acetylide and ammonia.
Reason: sp hybridised carbon atoms of acetylene are considerably electronegative.

AIIMSAIIMS 2007Hydrocarbons

Solution:

$HC \equiv CH + NaNH_2 \xrightarrow{\text{Ether}} HC \equiv C- Na+ + NH_3$

$C-H$ bond is strongly polar due to high electronegativity of carbon atom. Hence it gives $H^+$ ion on reacting with a base or acetylene behaves as an acid.