Question:
The IUPAC name of 
The IUPAC name of
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Always number the carbon chain from the end nearest the principal functional group.
Updated On: Apr 20, 2026
- 2-methyl-3-bromo hexanal
- 3-bromo-2-methyl butanal
- 2-bromo-3-bromo butanal
- 3-bromo-2-methyl pentanal
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
IUPAC nomenclature: select longest chain containing the functional group (aldehyde).
Step 2: Detailed Explanation:
Structure: CH\(_3\)-CHBr-CH(CH\(_3\))-CHO.
Longest chain with CHO has 5 carbons: CHO-CH(CH\(_3\))-CHBr-CH\(_3\).
Number from CHO: C1 (CHO), C2 (CH(CH\(_3\))), C3 (CHBr), C4 (CH\(_3\)).
Name: 3-bromo-2-methyl pentanal.
Step 3: Final Answer:
3-bromo-2-methyl pentanal
IUPAC nomenclature: select longest chain containing the functional group (aldehyde).
Step 2: Detailed Explanation:
Structure: CH\(_3\)-CHBr-CH(CH\(_3\))-CHO.
Longest chain with CHO has 5 carbons: CHO-CH(CH\(_3\))-CHBr-CH\(_3\).
Number from CHO: C1 (CHO), C2 (CH(CH\(_3\))), C3 (CHBr), C4 (CH\(_3\)).
Name: 3-bromo-2-methyl pentanal.
Step 3: Final Answer:
3-bromo-2-methyl pentanal
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