NEETChemistryHydrocarbons
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
Options
- AA and R are correct and R is the correct explanation of A
- BA and R are correct but R is not the correct explanation of A
- CA is correct but R is not correct
- DA is not correct but R is correct
Correct answer
D. A is not correct but R is correct
Step-by-step solution
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.