MCQOPTIONS
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MCQOPTIONS
| 1. |
In plaster mould casting the mould is made from |
| A. | CaSO<sub>4</sub> |
| B. | CaSO<sub>3</sub> |
| C. | CaSO<sub>2</sub> |
| D. | None of the mentioned |
| Answer» B. CaSO<sub>3</sub> | |