Hydrocarbons Question 83
Question: A gas decolourises bromine in $ CCl_4 $ and forms a precipitate with ammoniacal silver nitrate. The gas is [EAMCET 1998]
Options:
A) $ C_2H_2 $
B) $ C_2H_4 $
C) $ C_2H_6 $
D) $ CH_4 $
Show Answer
Answer:
Correct Answer: A
Solution:
$ CH\equiv CH+2Br_2\xrightarrow{CCl_4}\underset{\underset{Br}{\mathop{|}}}{\overset{\overset{Br}{\mathop{|}}}{\mathop{CH}}}-\underset{\underset{Br}{\mathop{|}}}{\overset{\overset{Br}{\mathop{|}}}{\mathop{CH}}} $
$ CH\equiv CH+NH_4OH+AgNO_3\to \underset{\begin{smallmatrix} \text{Di-silver}acetylide \\ whiteppt\text{.} \end{smallmatrix}}{\mathop{Ag-C\equiv C-Ag}} $
BETA
