A reaction of benzonitrile with one equivalent \(\mathrm{CH_3MgBr}\) followed by hydrolysis produces a yellow liquid "P". The compound "P" will give positive ________.
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- Iodoform test
- Schiff's test
- Ninhydrin's test
- Tollen's test
The Correct Option is A
Solution and Explanation
Hydrolysis gives the imine and then the ketone: \(\mathrm{C_6H_5COCH_3}\) (acetophenone, "P").
Acetophenone is a methyl ketone (\(\mathrm{CH_3CO{-}}\)), so it gives the iodoform test (yellow precipitate of \(\mathrm{CHI_3}\)).
It does not give Schiff\'s or Tollens\' tests (not an aldehyde), and ninhydrin test is for amino acids/amines.
Answer: (1) Iodoform test
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