UPSC Prelims GS - 2020

Question 52
DIFFICULTCorrect: +2Incorrect: -2

Consider the following minerals:
1. Bentonite
2. Chromite
3. Kyanite
4. SillimaniteIn India,
which of the above is/are officially designated as major minerals?

    a
    1 and 2 only
    b
    4 only
    c
    1 and 3 only
    d
    2, 3 and 4 only