Physical Properties — Predicted 2026

AI-Predicted Question Angles for UPSC 2026

Based on trend analysis, current affairs, and recurring themes in Physical Properties.

Comparative analysis of physical properties across 3d, 4d, and 5d series.

high

NEET often tests comparative understanding. Questions could ask about the relative densities, melting points, or atomic radii between elements of different transition series, specifically highlighting the impact of lanthanoid contraction on 4d vs. 5d elements. For instance, comparing the melting points of Cr, Mo, and W, or the densities of Ti, Zr, and Hf, requiring knowledge of both general trends and specific phenomena like lanthanoid contraction and metallic bonding strength.

Identification of diamagnetic/paramagnetic ions and calculation of magnetic moment for complex ions.

high

Magnetic properties are a perennial favorite. Future questions might involve more complex ions or require determining the oxidation state first, then the electronic configuration, and finally the number of unpaired electrons. For example, asking for the magnetic moment of an ion in a complex like $[Co(NH_3)_6]^{3+}$ (which can be low spin or high spin, though NEET usually assumes high spin unless specified, or provides context for strong/weak field ligands). This tests multiple concepts simultaneously.

Reasoning for anomalous physical properties (e.g., low melting point of Hg, colour of $MnO_4^-$).

medium

While the general trends are important, NEET often focuses on exceptions and their underlying reasons. Questions might specifically target why mercury is liquid at room temperature (filled d-orbitals, weak metallic bonding) or why $MnO_4^-$ is intensely coloured despite $Mn^{7+}$ having a $d^0$ configuration (charge transfer mechanism). This requires a deeper conceptual understanding beyond simple d-d transitions.