MCQOPTIONS
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| 1. |
A hydrated solid X on heating initially gives a monohydrated compound Y. Y upon heating above 373 K leads to an anhydrous white powder Z. X and Z, respectively, are: |
| A. | Washing soda and soda ash. |
| B. | Baking soda and dead burnt plaster. |
| C. | Washing soda and dead burnt plaster. |
| D. | Baking soda and soda ash. |
| Answer» B. Baking soda and dead burnt plaster. | |