A salt which in solution gives a bluish white precipitate with NaOH solution and a white precipitate with $\mathrm{BaCl}_{2}$ solution is: A $\quad \mathrm{CuSO}_{4}$ B $\mathrm{FeSO}_{4}$ C $\mathrm{Fe}_{2}\left(\mathrm{SO}_{4}\right)_{3}$ D $\mathrm{CuCl}_{2}$
Explanation
A salt which in solution gives a bluish white precipitate with NaOH solution and a white precipitate with $\\mathrm{BaCl}_{2}$ solution is $\\mathrm{FeSO}_{4}$ due to the formation of iron(II) hydroxide and iron(II) carbonate.
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