JEE Main20268 April 2026Evening ShiftChemistryAminesActual
Which statements are True? A. In Hoffmann bromamide degradation, 4 moles of NaOH and 2 moles of Br₂ are consumed per mole of an amide B. Hoffmann bromamide reaction is not given by alkyl amides. C. Primary amines can be synthesized by Hoffmann bromamide degradation. D. Secondary amide on reaction with Br₂ and NaOH will give secondary amine. E. The by-products of Hoffmann degradation are Na₂ C O₃ , NaBr and H₂ O. Choo
Options
- AA, C and E only
- BB, C and D only
- CC and E only
- DC, D and E only
Correct answer
C. C and E only
Step-by-step solution
The balanced chemical equation for Hoffmann bromamide degradation is: R-CONH ₂ + Br ₂ + 4 NaOH R-NH ₂ + Na ₂ CO ₃ + 2 NaBr + 2 H ₂ O Statement A is false because 1 mole of Br ₂ and 4 moles of NaOH are consumed per mole of amide. Statement B is false because primary alkyl amides readily undergo this reaction. Statement C is true as the primary product of this reaction is a primary amine. Statement D is false because the reaction is strictly given by primary amides ( R-CONH ₂ ), not secondary amides. Statement E is t