The correct order of reactivity of following alcohols towards conc. $H C l / Z n {C l}_{2}$ is?

I > II > III > IV

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I > III > II > IV

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III > II > I > IV

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IV > III > I > II

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Solution

The correct option is C III > II > I > IV
In reaction of alcohol with $H C l / Z n C l_{2}$ carbocation intermediate get form electron withdrawing group decreases reactivity,as it will establish the carbocation soorder will be, $(I I I) > (I I) > (I) > (I V)$ .

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The correct order of reactivity of following alcohols towards conc. HCl/ZnCl2 is?

The correct option is C III > II > I > IVIn reaction of alcohol with HCl/ZnCl2 carbocation intermediate get form electron withdrawing group decreases reactivity,as it will establish the carbocation soorder will be,(III)>(II)>(I)>(IV).

The correct order of reactivity of following alcohols towards conc. $H C l / Z n {C l}_{2}$ is?

The correct option is C III > II > I > IV
In reaction of alcohol with $H C l / Z n C l_{2}$ carbocation intermediate get form electron withdrawing group decreases reactivity,as it will establish the carbocation soorder will be, $(I I I) > (I I) > (I) > (I V)$ .