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STD 11 - 8.1. Organic chemistry Nomenclature of organic compounds — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 - 8.1. Organic chemistry Nomenclature of organic compounds4 Marks
MCQ
The $IUPAC$ name of given is :
  • ✓
    $2-$ methoxy $-4-$ nitro benzaldehyde
  • B
    $4-$ nitro anisaldehyde
  • C
    $3-$ methoxy $-4-$ formyl nitro benzene
  • D
    $2-$ formyl $-4-$ nitro anisole
✓

Answer

Correct option: A.
$2-$ methoxy $-4-$ nitro benzaldehyde
a
The rule says that the first priority for the lowest numbers is given to the substituent of highest priority, i.e., $CHO$.

Here, the other group will be taken as a substituent. The numbering of the other groups will be such that the other groups should be on the least numbering.

Hence, the name $2$-Methoxy-$4$-nitro benzaldehyde.

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