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.


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