JEE Main 2019 — S Block Elements Question with Solution
From: JEE Main 2019 (Online) 12th April Morning Slot
Question
The correct sequence of thermal stability of the following carbonates is :
Choose an option
Show full solutionCorrect option: B
Correct answer
BMgCO3 < CaCO3 < SrCO3 < BaCO3
Step-by-step explanation
Stability of alkaline earth metal carbonates
increases down the group as size of cation increases ans polarization decreases down the group :
MgCO3 < CaCO3 < SrCO3 < BaCO3
MgCO3 < CaCO3 < SrCO3 < BaCO3
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This is a previous-year question from JEE Main 2019, covering the S Block Elements chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.