JEE Main 2021 — S Block Elements Question with Solution
From: JEE Main 2021 (Online) 31st August Morning Shift
Question
The major component/ingredient of Portland Cement is :
Choose an option
Show full solutionCorrect option: B
Correct answer
Btricalcium silicate
Step-by-step explanation
Major component of Portland cement is "Tricalcium silicate (51%, 3CaO.SiO2)
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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.