Solved UPSC CDS/OTA Question
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Q · MineralsMedium · 45s
Which of the following are rare earth minerals? Cerium Neodymium Thorium Bismuth
TopicMinerals
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Cerium and neodymium are rare earth elements. Thorium is radioactive but not classified as REE.
Final Answer: Option B - 1 and 2 only