In the following reaction sequence, P, Q, S and T are the major products.

The correct statement(s) about P, Q, S and T is(are)

A

$$\mathbf{Q}$$ on treatment with ethanol generates an aromatic aldehyde.

B

$$\mathbf{S}$$ gives positive phthalein dye test.

C

$$\mathbf{P}$$ is a dinitro compound.

D

$$\mathbf{T}$$ is a coloured compound.