JEE Main 2021 — s Block Elements Question with Solution
JEE Main 2021 (26 Aug Shift 2)
Question
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Barium carbonate is insoluble in water and is highly stable.
Reason (R): The thermal stability of the carbonates increases with increasing cationic size.
Choose the most appropriate answer from the options given below :
Assertion (A): Barium carbonate is insoluble in water and is highly stable.
Reason (R): The thermal stability of the carbonates increases with increasing cationic size.
Choose the most appropriate answer from the options given below :
Choose an option
Show full solutionCorrect option: B
Correct answer
BBoth (A) and (R) are true.
Step-by-step explanation
(i) Stability as size of cation , ionic character
(ii) Solubility in water
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This is a previous-year question from JEE Main 2021, 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.