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What is the order of reactivity of these alkenes ( C H 3 ) 2 C = C H 2 ( I ) , C H 3 C H = C H 2 ( I I ) and C H 2 = C H 2 ( I I I ) when subject to acid-catalysed hydration?

Options

  1. AI > II > III
  2. BI > III > II
  3. CIII > II > I
  4. DII > I > III

Correct answer

A. I > II > III

Step-by-step solution

The order of acid catalysed hydration can be given on the basis of stability of carbocations formed as follows

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