Question

Assertion (A) Reaction of 1 -butene with $HBr$ gives 1-bromobutane as major product.
Reason (R) Addition of hydrogen halides to alkenes proceeds according to Markownikoff's rule.
The correct answer is

• A. $A$ and $R$ are correct and $R$ is the correct explanation of $A$
• B. $A$ and $R$ are correct but $R$ is not the correct explanation of $A$
• C. $A$ is correct but $R$ is not correct
• D. $A$ is not correct but $R$ is correct

Answer 1

Answer: (D)

According to Markownikoff's rule, the addition of reagents such as $HX,H_{2}O$ and $HOX$ with unsymmetrical alkanes occurs in such a way that the negative part of the adding molecule goes to that carbon atom of the double bond which carries

lesser number of hydrogen atoms.