JEE Main 2021 — S Block Elements Question with Solution
From: JEE Main 2021 (Online) 25th July Evening Shift
Question
Match List I with List II :
Choose the correct answer from the options given below :
| List-I Elements |
List-II Properties |
||
|---|---|---|---|
| (a) | Li | (i) | Poor water solubility of salt |
| (b) | Na | (ii) | Most abundant element in cell fluid |
| (c) | K | (iii) | Bicarbonate salt used in fire extinguisher |
| (d) | Cs | (iv) | Carbonate salt decomposes easily on heating |
Choose the correct answer from the options given below :
Choose an option
Show full solutionCorrect option: A
Correct answer
A(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
Step-by-step explanation
(a) CsI salt is poor water soluble due to it's low hydration energy
(b) NaHCO3 is used in fire extinguisher
(c) K is most abundant element in cell fluid
(d) Li2CO3 decomposes easily due to high covalent character caused by small size Li+ cation.
(b) NaHCO3 is used in fire extinguisher
(c) K is most abundant element in cell fluid
(d) Li2CO3 decomposes easily due to high covalent character caused by small size Li+ cation.
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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.