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NEET2024Chemistry
Q.

A compound with a molecular formula of CH has two tertiary carbons. Its IUPAC name is:

  1. A

    2,3-dimethylbutane

  2. B

    2,2-dimethylbutane

  3. C

    -hexane

  4. D

    2-methylpentane

Solution

Tertiary carbon C bonded to three other C atoms. In 2,3-dimethylbutane, carbons C2 and C3 each carry three carbon neighbours; that gives exactly two tertiary carbons. The other isomers have zero or one tertiary carbon.

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