Solved UPSC CDS/OTA Question
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Q · IndustriesMedium · 45s
Which mineral is crucial for the cement industry?
TopicIndustries
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained - no skipped algebra.
Gypsum is essential for regulating the setting time in cement.
Final Answer: Option B - Gypsum