Give reasons:
Racemic mixture is optically inactive.
The racemic mixture contains two enantiomers (d and l forms) in equal proportions and thus, the rotation due to one isomer is cancelled by the rotation due to another. Therefore, it has zero optical rotation and hence, it is optically inactive.
Give reasons:
The presence of nitro group (–NO2) at o/p positions increases the reactivity of haloarenes towards nucleophilic substitution reactions.
Which alkyl halide from the following pair is chiral and undergoes faster SN2 reaction?
Out of SN1 and SN2, which reaction occurs with
(a) Inversion of configuration
(b) Racemisation
Draw the structure of major monohalo product in each of the following reactions:
i)
ii)