JEE Main 2019 — S Block Elements Question with Solution
From: JEE Main 2019 (Online) 11th January Evening Slot
Question
Match the following items in column I with the corresponding items in column II.
| Item I | Item II | ||
|---|---|---|---|
| (i) | Na2CO3.10H2O | (A) | Portland cement ingredient |
| (ii) | Mg(HCO3)2 | (B) | Castner-Kellner process |
| (iii) | NaOH |
(C) | Solvay process |
| (iv) | Ca3Al2O6 | (D) | Temporary hardness |
Choose an option
Show full solutionCorrect option: D
Correct answer
D(i)(C); (ii)(D); (iii)(B); (iv)(A)
Step-by-step explanation
Na2CO3.10H2O Solvay process
Mg(HCO3)2 Temporary hardness
NaOH Castner-kellner cell
Ca3Al2O6 Portland cement
Mg(HCO3)2 Temporary hardness
NaOH Castner-kellner cell
Ca3Al2O6 Portland cement
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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.