In the addition of HBr to 3-methylbut-1-ene, which of the following is the rate determining step?
A
CH3−CH(CH3)−CH=CH2+H+→CH3−CH(CH3)−CH+−CH3
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B
CH3−CH(CH3)−CH+−CH3→CH3−C+(CH3)−CH2CH3
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C
CH3−C+(CH3)−CH2−CH3+Br−→CH3−C(Br)(CH3)−CH2CH3
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D
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Solution
The correct option is ACH3−CH(CH3)−CH=CH2+H+→CH3−CH(CH3)−CH+−CH3 In the addition of HBr to 3-methylbut-1-ene, the rate determining step is the addition of proton to carbon carbon double bond. CH3−CH(CH3)−CH=CH2+H+→CH3−CH(CH3)−CH+−CH3