The GATE Grind

GATE 2025 MN – Question 16

Mining Geology, Mine Development and Surveying · Mining Geology · 1 mark · Multiple choice

Which metal is a rare-earth element?

  1. Cerium
  2. Lithium
  3. Titanium
  4. Cobalt

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Show answer and explanation

Correct answer: (A) Cerium

Explanation

Cerium is a lanthanide and belongs to the rare-earth group, A. Lithium is an alkali metal, while titanium and cobalt are transition metals. The classification is chemical rather than a statement about how scarce a metal is in a particular deposit.

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