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Manipal MET2016ChemistryGeneral Organic Chemistry

The compound gives blood red colouration when its Lassaigne's extract is treated with alkali and ferric chloride?

Options

  1. ABenzamide
  2. BPhenyl hydrozine
  3. CDiphenyl sulphide
  4. DThiourea

Correct answer

D. Thiourea

Step-by-step solution

Thiourea contains both S and N and hence gives blood red colouration when its Lassaigne's extract is treated with alkali and FeCl ₃ .

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