Q 19. The chemical formula for Epsom salt is *
(a) CuSO₄.5H₂O
(b) MgSO₄.7H₂O
(c) CuSO₄.7H₂O
(d) MgSO₄.5H₂O
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Answer:
correct option is (b) MgSO4. 7H2O
this answer is 100% ryt
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