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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3ev219

Select the changes that are consistent with the aims of green chemistry.

  1. AReplacing chlorine by hydrogen peroxide for bleaching
  2. BAdding a protecting group to every functional group before each step
  3. CUsing biodegradable detergents
  4. DUsing microwave heating to shorten a reaction from hours to minutes

Answer: A, C, D

Peroxide avoids chlorinated by-products (A), biodegradable detergents break down after use (C) and microwave heating saves energy (D). Routine protecting groups add steps and waste, so they go against the principle of reducing derivatives (B).
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