Consider the following reaction scheme and choose the correct option(s) for the major products $\mathbf{Q}$, $\mathbf{R}$ and $\mathbf{S}$.

In the following reaction sequence, the correct structure(s) of $$X$$ is (are)

The reactivity of compound Z with different halogens under appropriate conditions is given below


The observed pattern of electrophilic substitution can be explained by

In the following reaction, the product/products formed is/are