MCQOPTIONS
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MCQOPTIONS
| 1. |
Which of the following is a correct formula for washing soda? |
| A. | Na<sub>2</sub>CO<sub>3</sub>.10H<sub>2</sub>O |
| B. | Na<sub>2</sub>CO<sub>3</sub> |
| C. | NaCO<sub>3</sub> |
| D. | Na<sub>2</sub>CO |
| Answer» B. Na<sub>2</sub>CO<sub>3</sub> | |