Hydrogenation of $C_6H_5CHOHCOOH$ over $Rh-Al_2O_3$ catalyst in methanol gives:

Which of the following compounds is most reactive toward an electrophilic substitution reaction?

Consider the following reactions:
$C_2 H_2 \xrightarrow[500^{\circ}C]{\text{red hot iron tube}} A$
$A \xrightarrow[70^{\circ}C]{\text{conc. } HNO_3, \text{conc. } H_2 SO_4} B$
$B \xrightarrow{LiAlH_4} C_6 H_5-N=N-C_6 H_5$
$A$ and $B$ are:

Which of the following is the strongest $o,p$-directing group?

Identify the reaction shown in the following chemical equation: $C_6H_6 + CH_3Cl \xrightarrow{\text{Anhydrous } AlCl_3} C_6H_5CH_3 + HCl$

The major product of the reaction is