1.

The order of reactivity of tghe following alcohols towards HCI is

Answer»

I gt II gt III gt IV
I gt III gt II gt IV
IV gt III gt II gt I
IV gt III gt I gt II.

Solution :The order of reactivity depends UPON cyclohexenol of the carbocationformed

The presence of electron-withdrawing intensfies i.e. DESTABILIZES the carbocation THUS (i) and (ii) one less STABLE than (iii). Further (i) is less stable than (ii) because -I effect is more pronounced in (i) due to less distance between F and +charge. Thus stability order of the FOUR carbocations and the reactivity of their parent alcohls will be IV gt III gt II gt I.


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