Question Detail
Question
A compound, C4H6, reacts with bromine and forms a white precipitate with ammoniacal silver nitrate solution. It reacts with dilute H2SO4 in the presence of mercuric sulfate to form 2-butanone. The compound could be
Correct Answer
Option A is the correct answer.
Detailed Explanation
1-Butyne (C4H6, CH≡C-CH2-CH3) reacts with bromine (unsaturation), forms precipitate with ammoniacal AgNO3 (terminal alkyne), and hydration gives 2-butanone (CH3-CO-CH2CH3). 2-Butyne (internal alkyne) does not give AgNO3 precipitate.
Hint
Which compound is a terminal alkyne that gives 2-butanone on hydration?