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Arrange the following alcohols in order of increasing reactivity towards sodium metal. ( i ) C H 3 O H ( i i ) ( C H 3 ) 2 C H - O H ( i i i ) C H 3 C H 2 O H ( i v ) ( C H 3 ) 3 C - O H

Options

  1. A(iv) < (iii) < (ii) < (i)
  2. B(ii) < (i) < (iii) < (iv)
  3. C(iv) < (ii) < (iii) < (i)
  4. D(i) < (iii) < (ii) < (iv)

Correct answer

C. (iv) < (ii) < (iii) < (i)

Step-by-step solution

More the number of methyl groups (electron releasing) lesser will be the acidity. Hence the reactivity order towards sodium metal will be as follows tertiary (i) < secondary (ii) < primary (iii). ( C H 3 ) 3 C - O H < ( C H 3 ) 2 C H - O H < C H 3 C H 2 O H < C H 3 O H

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