Method by which aniline cannot be prepared is [2015]

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Q.
Method by which aniline cannot be prepared is [2015]

1 degradation of benzamide with bromine in alkaline solution

2 reduction of nitrobenzene with $H_{2}$ /Pd in ethanol

3 potassium salt of phthalimide treated with chlorobenzene followed by hydrolysis with aqueous NaOH solution

4 hydrolysis of phenylisocyanide with acidic solution

Ans.
(3)

Aniline cannot be prepared by this method because aryl halides do not undergo nucleophilic substitution reaction with potassium phthalimide under mild conditions.

Solution

Q.
Method by which aniline cannot be prepared is [2015]

1 degradation of benzamide with bromine in alkaline solution

2 reduction of nitrobenzene with $H_{2}$ /Pd in ethanol

3 potassium salt of phthalimide treated with chlorobenzene followed by hydrolysis with aqueous NaOH solution

4 hydrolysis of phenylisocyanide with acidic solution

Ans.
(3)

Aniline cannot be prepared by this method because aryl halides do not undergo nucleophilic substitution reaction with potassium phthalimide under mild conditions.

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Solution

Q. Method by which aniline cannot be prepared is [2015]

1 degradation of benzamide with bromine in alkaline solution

2 reduction of nitrobenzene with H2/Pd in ethanol

3 potassium salt of phthalimide treated with chlorobenzene followed by hydrolysis with aqueous NaOH solution

4 hydrolysis of phenylisocyanide with acidic solution

Ans. (3) Aniline cannot be prepared by this method because aryl halides do not undergo nucleophilic substitution reaction with potassium phthalimide under mild conditions.

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Q.
Method by which aniline cannot be prepared is [2015]

2 reduction of nitrobenzene with $H_{2}$ /Pd in ethanol

Ans.
(3)

Aniline cannot be prepared by this method because aryl halides do not undergo nucleophilic substitution reaction with potassium phthalimide under mild conditions.