MCQOPTIONS
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| 1. |
A metal M readily forms its sulphate \[MS{{O}_{4}}\]which is watersoluble. It forms its oxide MO which becomes inert on heating. It forms its insoluble hydroxide M\[{{(OH)}_{2}}\] which is soluble in NaOH solution. Then M is |
| A. | Mg |
| B. | Ba |
| C. | Ca |
| D. | Be |
| Answer» E. | |