A) Lignite
B) Bituminous
C) Dolomite
D) Peat
Correct Answer: C
Solution :
Dolomite is a common rock-forming mineral. It is a calcium magnesium carbonate with a chemical composition of \[CaMg{{(C{{O}_{3}})}_{2}}\]. It is the primary component of the sedimentary rock known as dolostone and the metamorphic rock known as dolomitic marble. Dolomite is used in the Pidgeon process for the production of magnesium.
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