Give the chemical test to distinguish between 2-butyne and 1-butyne.

Bromine water

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Fehling's solution

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Ammoniacal Silver

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β

naphthol

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Solution

The correct option is C Ammoniacal Silver
But-1-yne has acidic terminal $H$ atom and gives a white precipitate with ammoniacal $A g N O_{3}$ solution or red precipitate with ammoniacal $C u_{2} C l_{2}$ solution.
Hence, the correct option is C

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