SSC MTS EXAM

SSC

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What kind of bond cleavage yields charged fragments?
A
Heterolysis
B
Homolysis
C
substitution
D
Unifrom
Explanation: 

Detailed explanation-1: -In heterolytic cleavage, or heterolysis, the bond breaks in such a fashion that the originally-shared pair of electrons remain with one of the fragments. Thus, a fragment gains an electron, having both bonding electrons, while the other fragment loses an electron. This process is also known as ionic fission.

Detailed explanation-2: -Heterolytic bond cleavage (heterolytic cleavage; heterolysis): Bond breaking in which the bonding electron pair is split unevenly between the products. Heterolytic cleavage often produces at least one ion. Heterolysis of a carbon-leaving group bond is the rate-limiting step in the SN1 and E1 mechanisms.

Detailed explanation-3: -Thus, when a covalent carbon-carbon bond undergoes heterolytic cleavage, a carbocation and a carbanion are formed.

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