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ChemistryNEET 2025Alkanes: conformations and reactions

Hydrocarbons

How many products (including stereoisomers) are expected from the monochlorination of the compound shown?

Question 75 as printed in the NEET 2025 booklet

  1. A.2
  2. B.3
  3. C.5
  4. D.6✓

Solution

Monochlorination of 2-methylbutane at each distinct hydrogen: C-1 (the two equivalent methyls) gives 1-chloro-2-methylbutane, chiral at C-2 (2 enantiomers); C-2 gives 2-chloro-2-methylbutane (1); C-3 gives 2-chloro-3-methylbutane, chiral (2); C-4 gives 1-chloro-3-methylbutane (1). Total .

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