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MHT CET202618 April 2026Evening ShiftChemistryHaloalkanes and HaloarenesActual

Identify substrate 'S' in the following reaction. S Na / dry ether 3, 4 - diethyl - 3, 4 - dimethyl hexane

Options

  1. A3 - chloro - 2 - methylpentane
  2. B2 - chloro - 3 - methylpentane
  3. C3 - chloro - 3 - methylpentane
  4. D2 - chloro - 2 - methylpentane

Correct answer

C. 3 - chloro - 3 - methylpentane

Step-by-step solution

The given reaction is a Wurtz reaction, which involves the coupling of two alkyl halide molecules in the presence of sodium and dry ether to form a symmetrical alkane. The structure of the product, 3,4-diethyl-3,4-dimethylhexane, is: CH ₃ -CH ₂ -C(CH ₃ )(CH ₂ CH ₃ )-C(CH ₃ )(CH ₂ CH ₃ )-CH ₂ -CH ₃ Since the Wurtz reaction produces a symmetrical alkane by the dimerization of alkyl radicals, we can determine the structure of the reactant by cleaving the central carbon-carbon bond of the product. Cleaving the bond bet

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