Number of isomeric forms of C7H9N having benzene ring will be

Total number of stereoisomer of compound is given below

The maximum number of isomers (including stereoisomers) that are possible on monochlorination of 3 m

Which of the following compounds will exhibit geometrical isomerism ?

A Fischer projection of (2R, 3S)-2,3-butanediol is

C4H6O2 does not represent