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Which one is the correct order of reactivity of different types of alcohol towards hydrogen halide?

Which one is the correct order of reactivity of different types of alcohol towards hydrogen halide? Correct Answer 3° alcohol > 2° alcohol > 1° alcohol

Reaction of HX with alcohol depends on the degree of carbonation generated due to heterocyclic cleavage of HX bond. If alcohol is primary alcohol then reaction will proceed through Sn2 for tertiary alcohol it will proceed with Sn1. For secondary alcohol it can go through both path (Sn1 or Sn2). Sn1 being ionic in nature takes place very fast while Sn2 is molecular in nature reacts slowly. Hence, we can sum up above, Rate of reaction is 3° alcohol > 2° alcohol > 1° alcohol.

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Q: But we know the truth is alcohol and cigarette are harmful for peoples health and sometimes it may bring bad effects to self-impression.
R: Alcohol ads usually create several feints to tell people that alcohol is good for people and induce people to drink.
S: On the other hand, the malign influence of advertisements shows smoking as something "cool".