A mixture of two white substances was dissolved in water. On passing \( \mathrm{Cl}_{2} \) gas t...

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A mixture of two white substances was dissolved in water. On passing \( \mathrm{Cl}_{2} \) gas through the solution a deep brown colour is developed. Addition of \( \mathrm{BaCl}_{2} \) solution to the original solution gives a white ppt. Addition of a large amount of \( \mathrm{NaOH} \) solution to the original solution gives a white ppt, whose suspension in water is used as an ant-acid, the mixture gives golden yellow colour flame. What is the chemical composition of the mixture -
(A) \( \mathrm{NaBr} \& \mathrm{MgSO}_{4} \)
(B) \( \mathrm{NaBr} \) \& \( \mathrm{CaSO}_{4} \)
(C) \( \mathrm{NaBr} \& \mathrm{Al}_{2}\left(\mathrm{SO}_{4}\right)_{3} \)
(D) \( \mathrm{NaBr} \) \& \( \mathrm{ZnSO}_{4} \)
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