Hydrocarbons Question 76
Question: Acetylene gives [CPMT 1985]
Options:
A) White precipitate with $ AgNO_3 $ and red precipitate with $ Cu_2Cl_2 $
B) White precipitate with $ Cu_2Cl_2 $ and red precipitate with $ AgNO_3 $
C) White precipitate with both the reagents
D) Red precipitate with both the reagents
Show Answer
Answer:
Correct Answer: A
Solution:
$ CH_3\equiv CH+\underset{\text{(Ammonical)}}{\mathop{AgNO_3}}\to \underset{\text{White ppt}\text{.}}{\mathop{Ag-C\equiv C-Ag}} $
$ CH_3\equiv CH+\underset{\text{(Ammonical)}}{\mathop{CuCl_2}}\to \underset{\text{Red ppt}\text{.}}{\mathop{Cu-C\equiv C-Cu}} $