A metal M readily forms water-soluble sulphate MSO4,water-insoluble hydroxide M(OH)2 and oxide MO which becomes inert on heating.The hydroxide is soluble in NaOH,The M is:
A
Be
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B
Mg
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C
Ca
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D
Sr
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Solution
The correct option is A Be BeSO4 is water soluble andBe(OH)2 water insoluble which is soluble in NaOH. Hence option A is correct.