Two metals (A) and (B) belong to the same group of the periodic table. Metal (A) forms an insoluble oxide but a soluble sulphate, metal (B) forms a soluble oxide but an insoluble sulphate.

The s-Block Elements

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23/12/2021 1:19 pm

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Palak23

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Two metals (A) and (B) belong to the same group of the periodic table. Metal (A) forms an insoluble oxide but a soluble sulphate, metal (B) forms a soluble oxide but an insoluble sulphate. Both metals (A) and (B) form hydroxides which are soluble in alkalis. (A) and (B) are

(a) Ba and Mg

(b) Na and K

(d) K and Rb

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23/12/2021 1:21 pm

Reyana09

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Correct answer: (c) Mg and Ba

Explanation:

MgO is insoluble, whereas MgSO₄ is soluble, whereas BaO is soluble, but BaSO₄ is insoluble.

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Two metals (A) and (B) belong to the same group of the periodic table. Metal (A) forms an insoluble oxide but a soluble sulphate, metal (B) forms a soluble oxide but an insoluble sulphate.

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