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Among the sulphates of alkaline earth metals, the solubilities of BeSO4 and MgSO4 in water, respectively, are -

1. poor and poor
2. high and high
3. poor and high
4. High and poor

Correct answer: high and high

Solution

Both beryllium sulfate (BeSO4) and magnesium sulfate (MgSO4) are highly soluble in water due to their ionic nature and the ability of water molecules to stabilize the resulting ions.

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