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NEET2026ChemistryAminesActual

The major product Z formed in the following sequence of reactions is : C ₂ H ₆ [ UV light ] Cl ₂ X NH ₃ Y [( monochlorinated product )] (i) NaNO ₂/ HCl (ii) H ₂ O Z

Options

  1. AC ₂ H ₅ NO ₂
  2. BC ₂ H ₅-N=N- OH
  3. CC ₂ H ₅ OH
  4. DC ₂ H ₅ NH ₂

Correct answer

C. C ₂ H ₅ OH

Step-by-step solution

Ethane undergoes free radical halogenation with chlorine in the presence of UV light to form ethyl chloride (X). C ₂ H ₆ + Cl ₂ UV light C ₂ H ₅ Cl (X) Ethyl chloride reacts with ammonia via nucleophilic substitution to form ethylamine (Y). C ₂ H ₅ Cl + NH ₃ C ₂ H ₅ NH ₂ (Y) Ethylamine, being a primary aliphatic amine, reacts with nitrous acid ( NaNO ₂ + HCl ) to form an unstable aliphatic diazonium salt, which decomposes to yield a carbocation. The carbocation reacts with water to form ethanol (Z). C ₂ H ₅ NH ₂ Na

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