A) III > II > I
B) I > III > II
C) I > II > III
D) II > I > III
Correct Answer: C
Solution :
Acid catalysed hydration of alkenes involves formation of carbocation intermediate. Higher the stability of carbocation intermediate, more is the reactivity towards acid catalyzed hydration. The order of stability of carbocations (formed) is \[{{(C{{H}_{3}})}_{2}}\overset{*}{\mathop{C}}\,C{{H}_{3}}>C{{H}_{3}}\overset{*}{\mathop{C}}\,HC{{H}_{3}}>\overset{*}{\mathop{C}}\,{{H}_{2}}-C{{H}_{3}}\] Thus, the order of reactivity towards acid catalysed hydration is \[\underset{(I)}{\mathop{{{(C{{H}_{3}})}_{2}}C=C{{H}_{2}}}}\,>\underset{(II)}{\mathop{C{{H}_{3}}>C{{H}_{3}}=C{{H}_{2}}}}\,>\underset{(III)}{\mathop{C{{H}_{2}}=C{{H}_{2}}}}\,\]You need to login to perform this action.
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