Predict the major product of the following reaction:
Benzene + Acetic anhydride $\xrightarrow{AlCl_3}$ ?

In the sulphonation,acetylation and formylation of benzene,the group of effective electrophiles would be:

The correct order of the rate of $EAS$ (electrophilic aromatic substitution) for the given compounds is:

The number of possible isomers of dichloro-nitrobenzene is

Which of the following sets contains only aromatic compounds?

$A$ compound $X$ formed after heating coke with lime reacts with water to give $Y$,which on passing over red hot iron at $873 \ K$ produces $Z$. The compound $Z$ is: