Question

Which of the products will be major product in the reaction given below? Explain.
(1)CH3CH=CH2+HI—CH3CH2CH2I+CH3CHICH3.(2)CH3Cl+KNO2—...............(3)C2H5Cl+Nal—.................​

Answer 1

Answer =

CH3CH=CH2 + HI ------------> CH3CH2CH2CH2I(1⁰carbocation )

                                                CH3CHICH3 (2⁰carbocation )

the stability of carocation is 3⁰>2⁰>1⁰

so, the compund B will be formed as major product of the  reaction.

also ,according to markonikov rule the major product is 2-Idopropane.

Markonikoff's rule state that ,  When an unsymmetrical reagent is added to an unsymmetrical alkene, the negative part of the reagent is attached to the unsaturated C atom having less number of hydrogen atoms.