JEE Main 2023 — S Block Elements Question with Solution
From: JEE Main 2023 (Online) 8th April Evening Shift
Question
For a good quality cement, the ratio of lime to the total of the oxides of and should be as close as to :
Choose an option
Show full solutionCorrect option: B
Correct answer
B2
Step-by-step explanation
For good quality cement, the ratio of lime (CaO) to the sum of the oxides of silicon (SiO₂), aluminum (Al₂O₃), and iron (Fe₂O₃) should be approximately 2:1.
This proportion ensures that the cement has good strength and setting properties, as well as resistance to chemical attack.
This proportion ensures that the cement has good strength and setting properties, as well as resistance to chemical attack.
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This is a previous-year question from JEE Main 2023, 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.