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NTA Abhyas NEET2020ChemistryAminesPractice

What is the product when C 6 H 5 - C H 2 - N H 2 reacts with nitrous acid?

Options

  1. AC 6 H 5 - N ≡ N
  2. BC 6 H 5 - C H 2 - N ⊕ ≡ N
  3. CC 6 H 5 - C H 2 - O H
  4. DC 6 H 5 - N H 2

Correct answer

C. C 6 H 5 - C H 2 - O H

Step-by-step solution

Primary amines with nitrous acid undergo diazotisation producing diazonium salt which further dissociates to alcohol and dinitrogen. C 6 H 5 - C H 2 - N H 2 → H N O 2 C 6 H 5 C H 2 N 2 + → C 6 H 5 - C H 2 - O H

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