A mixture of three gases, ethane, ethene and ethyne are pass... | Chemistry | SolveeIt | Solveeit

Today, August 23

Question

A mixture of three gases, ethane, ethene and ethyne are passed through ammoniacal solution of cuprous chloride. The emergent gas(es) after it was passed through solution contained

A

ethane only

B

ethane and ethene

C

ethane and ethyne

D

ethyne only.

Answer

ethane and ethene

Explanation

Solution

Ethyne having acidic hydrogens reacts with $Cu_2Cl_2$ . $CH \equiv CH + Cu_{2}Cl_{2} \to Cu - C \equiv C - Cu + 2HCl$ Ethane and ethene remain unreacted and come out of the solution.