Question

a mixture of ethane, ethylene and acetylene gases are passed through a woulfes bottle containing ammonical silver nitrate solution. The gas coming out is
1)ethane
2)acetylene
3)both ethane and ethylene
4)original mixture​

Answer 1

The only possible reaction is with actylene and the gas coming out is ammonia.

Explanation:

Acetylene reacts with ammonical cuprous chloride to form red precipitates. of copper acetylide while methane and ethylene do not react (since they do not have acidic hydrogen) They come out from the bottle  

• The reaction with acetylene is given below.

CH≡CH +2[Cu(NH3)2]OH ----> Cu−C≡C−Cu + 4NH3 + 2H2O  

• Reaction with methane :

CH4+ Ammonical Cu2Cl2 -------> No reaction  

As we can see methane with ammonical cuprous chloride does not give any reaction.

• Reaction with ethylene:

C2H4+ Ammonical Cu2Cl2  ------> No reaction

Similarly ethylene does not give any reaction with ammonical cuprous chloride.

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