A metal M readily forms its sulphate MSO...

A metal `M` readily forms its sulphate `MSO_(4)` which is watersoluble. It forms its oxide `MO` which becomes inert on heating. It forms its insoulbe hydroxide `M(OH)_(2)` which is soluble in `NaOH` solution. Then `M` is

`Mg`

`Ba`

`Ca`

`Be`

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The solubility of hydroxides of alkaline earth metals in water increases on moving down the group.

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A2Z-S BLOCK ELEMENTS ( GROUP 13 - 14)-General Characterstics, Pysical And Chemical Properties Of Alkaline Earth Metals

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