A) Only ethyne
B) Ethane and ethyne
C) Ethane and ethane
D) Ethane, ethene and propene
Correct Answer: D
Solution :
Only ethyne react with ammonical \[AgN{{O}_{3}}\] solution to give white ppt. of silver acetylide. It is due to having little acidic character. \[HC\equiv CH+2AgN{{O}_{3}}+2N{{H}_{4}}OH\xrightarrow{{}}\]\[\underset{white}{\mathop{AgC\equiv CAg}}\,\downarrow +2A{{H}_{4}}N{{O}_{2}}+2{{H}_{2}}O\]
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