JEE Main · 2019 · 11 Jan 2019 · Shift 2 · Classification of Elements and Periodicity

Electronegativity rises from left to right across a period and falls down a group. For the noble gas xenon it is effectively undefined, so $\text{Te}>\text{Xe}$ is not a valid trend; germanium lies to the right of gallium, so $\text{Ge}>\text{Ga}$, not the reverse; and sulphur lies to the right of phosphorus, so $\text{S}>\text{P}$. Only $\text{Si}>\text{Al}$ holds, since silicon lies to the right of aluminium in period 3.