A) \[A{{l}_{4}}{{C}_{3}}\]
B) \[ZnB{{r}_{2}}\]
C) \[{{C}_{2}}{{H}_{5}}MgCl~\]
D) \[~Ca{{C}_{2}}\]
Correct Answer: D
Solution :
Calcium carbide reacts with water to form ethyne as: \[\underset{\text{Calcium}\,\text{carbide}}{\mathop{Ca{{C}_{2}}}}\,+2{{H}_{2}}O\to Ca{{(OH)}_{2}}+\underset{Acetylene}{\mathop{{{C}_{2}}{{H}_{2}}}}\,\] Any metal carbide except \[\text{Ca}{{\text{C}}_{\text{2}}}\]reacts with water to form methane.
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