A) Methane
B) Acetylene
C) A mixture of methane and ethylene
D) The original mixture
Correct Answer: C
Solution :
Acetylene reacts with ammonical cuprous chloride to form red ppt. of copper acetylide while methane and ethylene do not react (since they do not have acidic hydrogen) They come out from the bottle \[CH\equiv CH+2\,[Cu{{(N{{H}_{3}})}_{2}}]OH\to \]\[Cu-C\equiv C-Cu+4N{{H}_{3}}+2{{H}_{2}}O\] \[C{{H}_{4}}+\,\text{Ammonical}\,\,C{{u}_{2}}C{{l}_{2}}\to \text{No}\,\,\text{reaction}\] \[{{C}_{2}}{{H}_{4}}+\,\text{Ammonical}\,\,C{{u}_{2}}C{{l}_{2}}\to \text{No}\,\,\text{reaction}\]
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