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Question

IUPAC name of the following compound is:

CH3CH(C2H5)CH2CH(OH)CH3

  1. 4-Methyl -2- hexanol
  2. 4-ethyl -2- pentanol
  3. 2-ethyl -2- pentanol
  4. 3-methylhexanol

A
4-Methyl -2- hexanol
B
2-ethyl -2- pentanol
C
3-methylhexanol
D
4-ethyl -2- pentanol
Solution
Verified by Toppr

IUPAC name of CH3CH(C2H5)CH2CH(OH)CH3 is 4-methyl -2- hexanol.
The parent compound contains a 6 C atom chain and a hydroxyl group. Hence, it is a derivative of hexanol. The hydroxyl group is present on the second C atom and methyl substituent is present on the fourth C atom.

Note: The longest chain of C atoms containing the OH group is selected as the parent alkane and numbered from the end closer to OH group.

Hence, the correct option is A

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