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NEET levelSingle correct optionDifficulty 1 of 3nm167

The number of different alkyl groups (structural, no stereoisomers) of formula is

  1. A4
  2. B2
  3. C3
  4. D5

Answer: A

Remove one H from butane (n-butyl, sec-butyl) and from 2-methylpropane (isobutyl, tert-butyl). Total = 4.
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