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In the hofmann-bromamide degradation rea...

In the hofmann-bromamide degradation reaction, the number of moles of NaOH and `Br_(2)` used per mole of amine produced are

A

Four moles of NaOH and one mole of `Br_2`

B

one mole of NaOH and one mole of `Br_2`

C

Four moles of NaOH and two moles of `Br_2`

D

Two moles of NaOH and two moles of `Br_2`

Text Solution

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The correct Answer is:
To solve the question regarding the Hofmann bromamide degradation reaction and determine the number of moles of NaOH and Br₂ used per mole of amine produced, we can follow these steps: ### Step 1: Understand the Reaction The Hofmann bromamide degradation reaction involves the conversion of primary amides into primary amines. The general reaction can be represented as: \[ RCONH_2 + Br_2 + 4NaOH \rightarrow RNH_2 + 2NaBr + 2H_2O + Na2CO3 \] where \( RCONH_2 \) is the primary amide and \( RNH_2 \) is the primary amine produced. ### Step 2: Identify Reactants and Products In the reaction: - **Reactants**: 1 mole of primary amide (RCONH₂), 1 mole of Br₂, and 4 moles of NaOH. - **Products**: 1 mole of primary amine (RNH₂), along with by-products such as NaBr and water. ### Step 3: Count Moles of Reactants Used From the balanced equation: - For every 1 mole of amine produced, 1 mole of Br₂ is required. - For every 1 mole of amine produced, 4 moles of NaOH are required. ### Step 4: Conclusion Thus, the number of moles of NaOH and Br₂ used per mole of amine produced are: - **Br₂**: 1 mole - **NaOH**: 4 moles ### Final Answer The answer to the question is: - 1 mole of Br₂ and 4 moles of NaOH are used per mole of amine produced.
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