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  • The order of reactivity of following alcohols with halogen acids is

The order of reactivity of following alcohols with halogen acids is

(A) CH_{3}CH_{2}-CH_{2}-OH

(B) 

(C) 

(i) (A) > (B) > (C)

(ii) (C) > (B) > (A)

(iii) (B) > (A) > (C)

(iv) (A) > (C) > (B)

Answers (1)

The order of reactivity of alcohols with halogen acids is 3° > 2° > 1°. This is because the stability of carbocations is in the same order. 

The reactivity of alcohols with halogen acids is due to the formation of carbocations, which is easier when they are more stable. The rate of reaction is faster when the carbocation is more stable. 

When alcohols are treated with HCl or HBr, they undergo a nucleophilic substitution reaction to produce an alkyl halide and water. 

The order of reactivity of hydrogen halides is HI > HBr > HCl > HF. This order parallels the acidity order. 

Hence, the answer is the option (ii) (C) > (B) > (A)

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infoexpert21

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