Question

The reactivity order of alkyl halides in SN2 is ___________

(a) CH3 X > 1^0 > 2^0 > 3^0

(b) CH3 X > 2^0 > 1^0 > 3^0

(c) CH3 X > 3^0 > 1^0 > 2^0

(d) CH3 X > 3^0 > 2^0 > 1^0

The question was posed to me during an interview.

My doubt stems from Nucleophillic Substitution Reaction in chapter Reactivity of Molecules Reaction Mechanism of Engineering Chemistry I

Answer 1

Right option is (a) CH3 X > 1^0 > 2^0 > 3^0

Easy explanation: The correct order of reactivity in alkyl halide is- CH3 X > 1^0 > 2^0 > 3^0. CH3 X is most reactive whereas 3^0 is least reactive.