McqMate
| Q. |
Which one of the following is not coal variety? |
| A. | Lignite |
| B. | Bituminous |
| C. | Dolomite |
| D. | Peat |
| Answer» C. Dolomite | |
|
Explanation: Dolomite is a common rock- forming mineral. It is a calcium magnesium carbonate with a chemical composition of CaMg(CO3)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. |
|
View all MCQs in
ChemistryNo comments yet