Question

In sn2 the hybridization of carbon atom changes from sp2 to

Answer 1

Explanation:

In transition state of SN2 mechanism, the carbon atom is sp2 hybridised due to its planar structure. At this point, carbon almost acquires 'pentavalency' with three full bonds and two 'partial' bonds, and a planar complex is formed, which is sp2 hybridised

Answer 2

IN SZ2 REACTION THE SP3 HYBRIDIZED CARBON IS ATTACKED BY A NUCLEOPHILE TO FORM A PENTAVALENT SP2 CARBON, WHICH THEN FORMS A SP3 CARBON AS A PRODUCT.

Explanation:

• The SN2 reaction is called the bimolecular substitution reaction.
• This reaction takes place in one step.
• The attacking of the nucleophile and the leaving group leaves simultaneously.
• Inversion of the configuration takes place.
• In this reaction the sp3 carbon atom is attacked by a nucleophile to form a sp2 hybridized carbon, in which the nucleophile bonding and leaving of leaving group is taking place, then again sp3 hybridized carbon is formed.
• The intermediate formed in pentavalent and it has a hybridization of sp2.