Aliphatic nucleophilic substitution mainly takes place by two mechanisms (i.e) SN^1 & SN^2Primary halides mainly undergo by SN^2mechanism and are favourable in polar aprotic solvents. SN^1 reactions takes place mainly by tertiary halide and are more favourable in polar protic solvents, In case of tertiary halides, E_1comes competition to SN^1 reaction. Keeping in view of these general points, answer the following questions(+)C_6H_5CH(CH_3)Cl to (pm) C_6H_5CH(OH)CH_3in which of the following solvents, the above reaction is most favourable

Aliphatic nucleophilic substitution mainly takes place by two mechanis

1.	Aliphatic nucleophilic substitution mainly takes place by two mechanisms (i.e) SN^1 & SN^2Primary halides mainly undergo by SN^2mechanism and are favourable in polar aprotic solvents. SN^1 reactions takes place mainly by tertiary halide and are more favourable in polar protic solvents, In case of tertiary halides, E_1comes competition to SN^1 reaction. Keeping in view of these general points, answer the following questions(+)C_6H_5CH(CH_3)Cl to (pm) C_6H_5CH(OH)CH_3in which of the following solvents, the above reaction is most favourable
Answer» 75% WATER + 25% `CH_3OH` 25% water + 75% methanol 100% methanol 10% water + 90% methanol Solution :Given reaction follows `SN^1` mechanism, which TAKES PLACE favorable in polar solvents due to FORMATION of cation is the intermediate step