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Question

Question: Acetylene gives....

Acetylene gives.

A

White precipitate with AgNO3\mathrm { AgNO } _ { 3 } and red precipitate with Cu2Cl2\mathrm { Cu } _ { 2 } \mathrm { Cl } _ { 2 }

B

White precipitate with Cu2Cl2\mathrm { Cu } _ { 2 } \mathrm { Cl } _ { 2 } and red precipitate with AgNO3\mathrm { AgNO } _ { 3 }

C

White precipitate with both the reagents

D

Red precipitate with both the reagents

Answer

White precipitate with AgNO3\mathrm { AgNO } _ { 3 } and red precipitate with Cu2Cl2\mathrm { Cu } _ { 2 } \mathrm { Cl } _ { 2 }

Explanation

Solution

CH3≡CH+CuCl2 (Ammonical) →Cu−C≡C Red ppt. −Cu\mathrm { CH } _ { 3 } \equiv \mathrm { CH } + \underset { \text { (Ammonical) } } { \mathrm { CuCl } _ { 2 } } \rightarrow \mathrm { Cu } - \underset { \text { Red ppt. } } { \mathrm { C } \equiv \mathrm { C } } - \mathrm { Cu }