Given below are two statements :

Statement I : Tropolone is an aromatic compound and has $$8 \pi$$ electrons.

Statement II : $$\pi$$ electrons of $$ > \mathrm{C}=\mathrm{O}$$ group in tropolone is involved in aromaticity.

In the light of the above statements, choose the correct answer from the options given below:

Among the following compounds, the one which shows highest dipole moment is

Thin layer chromatography of a mixture shows the following observation:

The correct order of elution in the silica gel column chromatography is

The decreasing order of hydride affinity for following carbocations is:

Choose the correct answer from the options given below: