A) Four moles of NaOH and one mole of \[\text{B}{{\text{r}}_{\text{2}}}\]
B) One mole of NaOH and one mole of \[\text{B}{{\text{r}}_{\text{2}}}\]
C) Four moles of NaOH and two moles of \[\text{B}{{\text{r}}_{\text{2}}}\]
D) Two moles of NaOH and two moles of \[\text{B}{{\text{r}}_{\text{2}}}\]
Correct Answer: A
Solution :
4 moles of NaOH and one mole of Br2 is required during production of on mole of amine during Hoffmann's bromamide degradation reaction. \[R-\overset{\begin{smallmatrix} \text{O} \\ \mathbf{||} \end{smallmatrix}}{\mathop{C}}\,-N{{H}_{2}}+B{{r}_{2}}+4NaOH\to R-N{{H}_{2}}\] \[+{{K}_{2}}C{{O}_{3}}+2NaBr+2{{H}_{2}}O\]
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