Question

Which of these will react with acetylene ?

• A. NaOH
• B. Ammoniacal $AgN{O}_3$ solution
• C. $N{H}_3$
• D. HCl
• E. All of these

Answer 1

The correct option is B Ammoniacal $AgN{O}_3$ solution

Nucleophiles and alkalies normally do not react with acetylene thus acetylene does not react with $NaOH,N{H}_3,HCl$.

Acetylene reacts with ammoniacal silver nitrate to produce disilver acetylide.
$CH\equiv CH\to +2\left[Ag\right(N{H}_3{)}_2]N{O}_3\to \stackrel{+}{A}g\stackrel{-}{C}\equiv C^{-}A{g}^{+}\downarrow$