JEE Main 2025 Jan 22 Shift 1, Chemistry Q4: Periodicity In Atomic Properties

Approximate Pauling electronegativities: Mg $=1.2$, Al $=1.5$, B $=2.0$, N $=3.0$.

So Al ($1.5$) is greater than Mg ($1.2$), which means the order Al $<$ Mg $<$ B $<$ N is wrong; the correct sequence is Mg $<$ Al $<$ B $<$ N.

All the other three orderings are consistent with Pauling values.