Benzene reacts with $n-$propyl chloride in the presence of anhydrous $AlCl_3$ to give predominantly

Amongst the following compounds,the one which is most easily sulphonated is:

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

Identify correct statement/s :
$(A)$ $-OCH_3$ and $-NHCOCH_3$ are activating groups
$(B)$ $-CN$ and $-OH$ are meta directing groups
$(C)$ $-CN$ and $-SO_3H$ are meta directing groups
$(D)$ Activating groups act as ortho- and para-directing groups
$(E)$ Halides are activating groups
Choose the correct answer from the options given below :

What is '$X$' in the given reaction?
$C_6H_6 + CH_2=CH_2 \xrightarrow{\text{Anhydrous } AlCl_3} X$

$C_6H_6 + CH_3Cl \xrightarrow{anhydrous \ AlCl_3} C_6H_5CH_3 + HCl$ is an example of