Solved UPSC CDS/OTA Question
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Q · Mineralsmedium · 45s
Which mineral is used in making paper?
TopicMinerals
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Kaolin, also known as china clay, is the primary mineral used in paper manufacturing. This fine-grained clay mineral [Al₂Si₂O₅(OH)₄] serves as a filler and coating agent, improving paper brightness, smoothness, and printability. While talc and mica may occasionally be used in specialized paper products, kaolin dominates due to its ideal particle size, chemical properties, and cost-effectiveness.
Final Answer: Option A - Kaolin (China Clay)