Which of the following statement(s) is/are true? (a) In a mixture o...
Which of the following statement(s) is/are true?
(a) In a mixture of \( \mathrm{Sr}^{2+} \) and \( \mathrm{Ca}^{2+} \), ammonium sulphate precipitates only \( \mathrm{Sr}^{2+} \) as \( \mathrm{SrSO}_{4} \) but \( \mathrm{CaSO}_{4} \) dissolves in ammonium sulphate forming a soluble complex
(b) Barium chromate is insoluble in dilute acetic acid
(c) \( \mathrm{Cr}(\mathrm{OH})_{3} \) is soluble in \( \mathrm{NaOH} \) and \( \mathrm{Br}_{2} \) water while \( \mathrm{Fe}(\mathrm{OH})_{3} \) is insoluble
(d) \( \mathrm{Cu} \) and \( \mathrm{Cd} \) separation is based upon the fact that in presence of excess \( \mathrm{KCN} \), only \( \mathrm{Cd} \) is precipitated
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