An organic compound A on reduction gives compound B which on reaction with chloroform and potassium hydroxide forms C. The compound C on catalytic reduction gives N-methylaniline. The compound A is
1. Nitrobenzene
2. Nitromethane
3. Methylamine
4. Aniline
An organic compound X (mol. formula C6H5O2N) has 6 carbon atoms in a ring system, three double bonds and also a nitro group as substituent X is:
1. Homocyclic but not aromatic
2. Aromatic but not homocyclic
3. Homocyclic and aromatic
4. Heterocyclic
A given nitrogen-containing aromatic compound a reacts with Sn/HCl, followed by HNO2 to give an unsatable compound B.B, on treament with phenol, forms a beautiful coloured compound C with the molecular formula C12H10N2O. The structure of compound A is