Help! Help! Organic Chemistry

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Alcohol Dehydration of 4-methyl-2-pentanol

(a)based on the mechanism of the reaction, explain why (E) and (Z) 4-methyl-2-pentenes and the 2-methyl-2-pentene are the three major alkene products.

(b)Explain why the reaction conditions promote carbocation rearrangements between carbocations of similar/identical stability. Use the concept of free energy of activation in your answer.

(a) I'm thinking maybe these only form the most stable cation

(b) I'm thinking maybe depeding on where the cation is, the SN1/SN2 reaction may favor that particular carbocation. As for the free energy of activation, I'm not sure.

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