Question

1. (a) In the first step of an SN1 reaction, the carbon-leaving group bond breaks and a carbocation forms. In the second step, the carbocation undergoes a nucleophilic attack. The rate limiting step in an SN1 reaction is: The nucleophilic attack. The formation of the product. The formation of the carbocation. Submit Answer Tries 0/1 (b) In an SN2 reaction, the nucleophile attacks while the leaving group leaves in a concerted mechanism. The rate limiting step in an SN2 reaction is: The nucleophilic attack. The formation of the carbocation. The formation of the product. Submit Answer Tries 0/1 (c) Please order the carbocations by the stability. i. primary carbocation Submit Answer Tries 0/1 ii. secondary carbocation Submit Answer Tries 0/1 iii. tertiary carbocation Submit Answer Tries 0/1

Answer 1

1. (a) Formation of the carbocation

(b) The nucleophilic attack is the slowest and rate limiting step in SN2 reaction

(c) Order of stability of carbocation : Primary < secondary < tertiary