Salts of Oxoacids — Predicted 2026

AI-Predicted Question Angles for UPSC 2026

Based on trend analysis, current affairs, and recurring themes in Salts of Oxoacids.

Comparative Thermal Stability of Complex Oxoacid Salts

medium

While Group 1 and 2 carbonates/nitrates are standard, NEET might introduce comparisons involving transition metal oxoacid salts or more complex p-block oxoacid salts (e.g., comparing stability of $ZnCO_3$ vs $CdCO_3$). This would require applying the same principles of polarizing power and cation size but to less common examples, testing deeper understanding beyond rote memorization of s-block trends. Questions could also involve salts of different oxoacids with the same cation, e.g., comparing $CaCO_3$ vs $CaSO_4$ stability.

Redox Reactions with Specific Stoichiometry and Products

high

Beyond simply identifying an oxidizing/reducing agent, NEET could present a specific redox reaction involving an oxoacid salt and ask for balanced equations, identification of specific products under varying conditions (e.g., acidic vs. basic medium), or the change in oxidation states. For instance, the reaction of sulfite with permanganate, or nitrate with a metal in dilute vs. concentrated acid. This tests both redox concepts and specific reaction knowledge, which is a strong NEET focus.

Hydrolysis of Salts of Weak Acid and Weak Base

medium

While strong acid/weak base and weak acid/strong base hydrolysis are common, questions on salts formed from both a weak acid and a weak base (e.g., ammonium acetate, ammonium carbonate) are less frequent but can be tricky. These questions require comparing the $K_a$ of the conjugate acid of the base and the $K_b$ of the conjugate base of the acid to determine the overall pH. This tests a more advanced understanding of hydrolysis and equilibrium, making it a good differentiator for higher ranks.

Applications and Industrial Relevance

low

While not a primary focus, NEET occasionally includes questions linking chemical concepts to real-world applications. For oxoacid salts, this could involve questions about their use in fertilizers (nitrates, phosphates), construction materials (carbonates, sulfates), or food preservatives (nitrites). Such questions would likely be conceptual and require general knowledge rather than deep mechanistic understanding, but they test a broader awareness of chemistry's role.