Question:
Stable compound formed during urea hydrolysis
Stable compound formed during urea hydrolysis
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Ammonium carbonate is a key stable product during urea breakdown.
Updated On: Jul 2, 2026
- Ammonium hydroxide
- Ammonium carbamate
- Ammonia
- Ammonium carbonate
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The Correct Option is D
Approach Solution - 1
Urea hydrolysis produces ammonium carbonate as a stable intermediate, which then releases ammonia.
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Approach Solution -2
Reaction pathway approach:
Urease-catalysed hydrolysis of urea proceeds in two steps. First, urea reacts with water to give the unstable intermediate ammonium carbamate: \( \text{CO(NH}_2\text{)}_2 + \text{H}_2\text{O} \rightarrow \text{NH}_2\text{COONH}_4 \). This carbamate is highly unstable and spontaneously hydrolyses further, \( \text{NH}_2\text{COONH}_4 + \text{H}_2\text{O} \rightarrow (\text{NH}_4)_2\text{CO}_3 \), giving ammonium carbonate. Unlike the fleeting carbamate, ammonium carbonate is comparatively stable and only slowly decomposes to release ammonia and carbon dioxide, which is why it is identified as the stable compound formed during urea hydrolysis.
Urease-catalysed hydrolysis of urea proceeds in two steps. First, urea reacts with water to give the unstable intermediate ammonium carbamate: \( \text{CO(NH}_2\text{)}_2 + \text{H}_2\text{O} \rightarrow \text{NH}_2\text{COONH}_4 \). This carbamate is highly unstable and spontaneously hydrolyses further, \( \text{NH}_2\text{COONH}_4 + \text{H}_2\text{O} \rightarrow (\text{NH}_4)_2\text{CO}_3 \), giving ammonium carbonate. Unlike the fleeting carbamate, ammonium carbonate is comparatively stable and only slowly decomposes to release ammonia and carbon dioxide, which is why it is identified as the stable compound formed during urea hydrolysis.
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