Q. Which of the following is/are “critical mineral/s”?
1.Lanthanides
2.Scandium
3.Yttrium
How many of the statements given above are correct?
Answer: C
Notes:
Explanation: Ministry of Mines formed a committee for identifying critical and strategic minerals.
- The list comprises 30 critical minerals, including 17 Rare Earth Elements (REEs) and 6 Platinum Group Elements (PGE).
- REE includes 15 Lanthanides (atomic numbers 57 — which is Lanthanum — to 71 in the periodic table) plus Scandium (atomic number 21) and Yttrium (39).
- REEs are classified as Light REE (LREE) and Heavy REE (HREE).
Source: FORUMIAS
