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Question
Assertion :Addition of one equivalent of HCl to 1,3−butene at 800C gives 3−chloro−1−butene as a major product. Reason: 3−chloro−1−butene is a kinetically controlled product.
Assertion :Addition of one equivalent of HCl to 1,3−butene at 800C gives 3−chloro−1−butene as a major product. Reason: 3−chloro−1−butene is a kinetically controlled product.
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Solution
The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
When a molecule HCl adds to a
carbon-carbon double bond, the hydrogen becomes attached to the carbon with the
more hydrogens on already. This is known as Markonikov's rule.
At very low temperature, 1,3−butadiene undergo 1,2 addition to giving the kinetically controlled product as a major one. so both statements are correct and second is the correct explanation of first.
When a molecule HCl adds to a carbon-carbon double bond, the hydrogen becomes attached to the carbon with the more hydrogens on already. This is known as Markonikov's rule. At very low temperature, 1,3−butadiene undergo 1,2 addition to giving the kinetically controlled product as a major one. so both statements are correct and second is the correct explanation of first.
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