The correct option is
B The formation of compound will be summarized as follows:
- This is an electrophilic substitution reaction.
- Chlorobenzene is an ortho para (o, p) directing group.
- Chlorobenzene breaks a bond in phthalic anhydrate since becomes positive and becomes negatively charged.
- Hence on treating with , so eventually ortho-meta-para directing product is formed.
Therefore, the above points clearly explain the formation of product.