The number of moles of NaOH consumed for formation of 1 mole of amine is:

Question

TestHub · Accepted Answer

This is the Hofmann Bromamide Degradation reaction where 1 mole of primary amine is formed from an amide:

Proton Abstraction: The first 2 moles of NaOH remove two acidic H⁺ ions from the nitrogen atom to form the isocyanate intermediate.

Hydrolysis & Neutralization: The remaining 2 moles of NaOH are consumed during the hydrolysis of the isocyanate and to neutralize the released CO₂ into Na₂CO₃.

Balanced Equation:

$RCON H_{2} + B r_{2} + 4 N a O H \to RN H_{2} + N a_{2} C O_{3} + 2 N a B r + 2 H_{2} O$

Conclusion: Therefore, exactly 4 moles of NaOH are consumed, making (D) the correct option.

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