Question:
Number of isomeric primary amines obtained from \( C_4H_9N \) are:
Number of isomeric primary amines obtained from \( C_4H_9N \) are:
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When counting isomers, consider the different ways the alkyl groups can be arranged around the nitrogen atom.
Updated On: Apr 22, 2026
- 3
- 4
- 5
- 6
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The Correct Option is B
Solution and Explanation
Step 1: Understand the structure of primary amines.
Primary amines are compounds where the nitrogen atom is attached to one alkyl group and two hydrogen atoms. For \( C_4H_9N \), we need to determine the different possible arrangements of the alkyl groups to form isomers.
Step 2: Draw the possible isomers.
For \( C_4H_9N \), we can have:
1. Butylamine (\( \text{CH}_3\text{CH}_2\text{CH}_2\text{NH}_2 \)),
2. Isobutylamine (\( \text{(CH}_3\text{)}_2\text{CH}\text{CH}_2\text{NH}_2 \)),
3. Sec-butylamine (\( \text{CH}_3\text{CH}_2\text{CH}(\text{CH}_3)\text{NH}_2 \)),
4. Tert-butylamine (\( (\text{CH}_3)_3\text{CNH}_2 \)).
Step 3: Conclusion.
The number of isomeric primary amines is 4, which is option (2).
Primary amines are compounds where the nitrogen atom is attached to one alkyl group and two hydrogen atoms. For \( C_4H_9N \), we need to determine the different possible arrangements of the alkyl groups to form isomers.
Step 2: Draw the possible isomers.
For \( C_4H_9N \), we can have:
1. Butylamine (\( \text{CH}_3\text{CH}_2\text{CH}_2\text{NH}_2 \)),
2. Isobutylamine (\( \text{(CH}_3\text{)}_2\text{CH}\text{CH}_2\text{NH}_2 \)),
3. Sec-butylamine (\( \text{CH}_3\text{CH}_2\text{CH}(\text{CH}_3)\text{NH}_2 \)),
4. Tert-butylamine (\( (\text{CH}_3)_3\text{CNH}_2 \)).
Step 3: Conclusion.
The number of isomeric primary amines is 4, which is option (2).
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