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JEE Advanced2014ChemistryAlcohols Phenols and EthersActual

The reactivity of compound Z with different halogens under appropriate conditions is given below: The observed pattern of electrophilic substitution can be explained by

Options

  1. AThe steric effect of the halogen
  2. BThe steric effect of the tert-butyl group
  3. CThe electronic effect of the phenolic group
  4. DThe electronic effect of the tert-butyl group

Correct answer

A. The steric effect of the halogen

Step-by-step solution

The reason is the steric hindrance of the tetra-butyl group which is attached to the benzene ring. That is why, the reactivity of compound Z with different halogens under the appropriate condition and electro-negativity of the halogens is Cl 2 > Br 2 > I 2

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