A compound on treatment with NaOH followed by addition
of AgNO₃ produces white precipitate at room
temperature. The precipitate is soluble in NH₄OH . The
compound is identified as
(a) vinyl chloride (b) benzyl chloride
(c) chlorobenzene (d) ethyl bromide
Answers
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The compounds is benzyl chloride.
option (B) is correct.
Explanation:
- AgNO3 solution can be used to find out which halogen is present in a suspected halogenoalkane.
- NaOH substitutes the Cl- from haloalkane.
- In Chlorobenzene and Vinyl chloride, the Cl is in conjugation with benzene ring and does not give alcohol.
- In Benzyl chloride, the Cl is not directly linked to benzene and thus react as haloalkane and gives white precipitate of AgCl with AgNO3 which is soluble in NH4 OH.
- Ethyl bromide gives yellow precipitate of AgBr which is insoluble in NH4OH at room temperature.
Thus the compounds is benzyl chloride.
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