Which of the following compounds is known as white vitriol

Options

(a) ZnSO₄.7H₂O
(b) CaCO₄.2H₂O
(c) Na₂SO₄.7H₂O
(d) MgSO₄.7H₂O

Correct Answer:

ZnSO₄.7H₂O

Explanation:

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