{:(,"Column A",,,"Column B"),(A.,"Green vitriol",(),a.,Na_(2)CO_(3) 10H_(2)O),(B.,"Blue vitriol",(),b.,MgSO_(4) 7H_(2)O),(C.,"Epsom salt",(),c.,FeSO_(4) 7H_(2)O),(D.,"Washing soda",(),d.,CuSO_(4) 5H_(2)O),(,,(),e.,CaSO_(4) 1//2 H_(2)O):}

{:(,"Column A",,,"Column B"),(A.,"Green vitriol",(),a.,Na_(2)CO_(3) 10

1.	{:(,"Column A",,,"Column B"),(A.,"Green vitriol",(),a.,Na_(2)CO_(3) 10H_(2)O),(B.,"Blue vitriol",(),b.,MgSO_(4) 7H_(2)O),(C.,"Epsom salt",(),c.,FeSO_(4) 7H_(2)O),(D.,"Washing soda",(),d.,CuSO_(4) 5H_(2)O),(,,(),e.,CaSO_(4) 1//2 H_(2)O):}
Answer» Solution :A `rarr` cFormula of green vitriol is `FeSO_(4)7H_(2)O` B `rarr` dFormula of blue vitriol is `CuSO_(4)5H_(2)O` C `rarr` bFormula of epsom SALT is `MgSO_(4)7H_(2)O` D `rarr` aFormula of washing soda is `Na_(2)CO_(3)10H_(2)O`