IUPAC NOMENCLUTURE-NEET QUESTIONS

The IUPAC name of the compound (NEET 2017)

• 5-formylhex-2-en-3-one

• 5-methyl-4-oxohex-2-en-5-al

• 3-keto-2-methylhex-5-ena

• 3-keto-2-methylhex-4-enal

Answer explanation

The structure of isobutyl group in an organic compound is

(NEET 2013)

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Answer explanation

Structure of the compound whose IUPAC name is 3-ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid is (NEET 2013)

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Answer explanation

Which nomenclature is not according to IUPAC system?

(NEET 2012)

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Answer explanation

The correct IUPAC name for the compound (NEET 2011)

• 4-ethyl-3-propylhex-1-ene

• 3-ethyl-4-ethenylheptane

• 3-ethyl-4-propylhex-5-ene

• 3-(1-ethylpropyl)hex-1-ene.

Answer explanation

The IUPAC name of the compound (NEET 2010)

• pent-4-yn-2-ene

• pent-3-en-1-yne

• pent-2-en-4-yne

• pent-1-yn-3-ene

Answer explanation

The IUPAC name of the compound having the formula (NEET 2009)

• 1-butyne-3-ene

• but-1-yne-3-ene

• 1-butene-3-yne

• 3-butene-1-yne.

Answer explanation

The IUPAC name of (NEET 2006)

• 1-chloro-1-oxo-2,3-dimethylpentane

• 2-ethyl-3-methylbutanoyl chloride

• 2,3-dimethylpentanoyl chloride

• 3,4-dimethylpentanoyl chloride.

Answer explanation

Names of some compounds are given. Which one is not in IUPAC system? (NEET 2005)

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Answer explanation

Name of the compound given below is (NEET 2003)

• 4-ethyl-3-methyloctane

• 3-methyl-4-ethyloctane

• 2,3-diethylheptane

• 5-ethyl-6-methyloctane

Answer explanation