How many of the following groups are ortho,para directing and ring activating?
`-NO_(2), -CN, -CH_(3), -OH, -NH_(2),`
`-OR, -X, -CHO, -NHR`

Classify the following into meta or ortho and para directing groups.: -NH_2

Classify the following into meta or ortho and para directing groups.: -CN

Classify the following into meta or ortho and para directing groups.: -CHO

Classify the following into meta or ortho and para directing groups.: -CH_3

Why is -CH_(3) group ortho and para directing in toluene ?

Select the principal functional group when the following groups are present in the molecule : (a) -OH, -COOH, -NO_(2) (b) -OCH_(3), OH, -Cl (c) -CHO, -CN, -OH (d) -Cl, -CONH_(2), -CHO

Select the principal functional group when the following groups are present in the molecule : (a) -OH, -COOH, -NO_(2) (b) -OCH_(3), OH, -Cl (c) -CHO, -CN, -OH (d) -Cl, -CONH_(2), -CHO