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Question: Answered & Verified by Expert
Acetylene gives
ChemistryHydrocarbonsJEE Main
Options:
  • A White precipitate with $\mathrm{AgNO}_3$ and red precipitate with $\mathrm{Cu}_2 \mathrm{Cl}_2$
  • B White precipitate with $\mathrm{Cu}_2 \mathrm{Cl}_2$ and red precipitate with $\mathrm{AgNO}_3$
  • C White precipitate with both the reagents
  • D Red precipitate with both the reagents
Solution:
1650 Upvotes Verified Answer
The correct answer is: White precipitate with $\mathrm{AgNO}_3$ and red precipitate with $\mathrm{Cu}_2 \mathrm{Cl}_2$
$\begin{gathered}\mathrm{CH}_3 \equiv \mathrm{CH}+\underset{\text { (Ammonica) }}{\mathrm{AgNO}_3} \rightarrow \mathrm{Ag}-\underset{\text { White ppt. }}{\mathrm{C}} \equiv \mathrm{C}-\mathrm{Ag} \\ \mathrm{CH}_3 \equiv \mathrm{CH}+\underset{\text { (Ammonica) }}{\mathrm{CuCl}_2} \rightarrow \mathrm{Cu}-\underset{\text { Red ppt. }}{\mathrm{C}} \equiv \mathrm{Cu}-\mathrm{Cu}\end{gathered}$

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