Choose the correct tests with respective observations. (A) \({\mathrm{CuSO}}_{4}\) (acidified with acetic acid) + \({\ma…

Choose the correct tests with respective observations.
(A) \({\mathrm{CuSO}}_{4}\) (acidified with acetic acid) + \({\mathrm{K}}_{4}\left[\mathrm{Fe}(\mathrm{CN}{)}_{6}\right]\to\)Chocolate brown precipitate.
(B) \({\mathrm{FeCl}}_{3}+{\mathrm{K}}_{4}\left[\mathrm{Fe}(\mathrm{CN}{)}_{6}\right]\to\) Prussian blue precipitate.
(C) \({\mathrm{ZnCl}}_{2}+{\mathrm{K}}_{4}\left[\mathrm{Fe}(\mathrm{CN}{)}_{6}\right]\), neutralised with \({\mathrm{NH}}_{4}\mathrm{OH}\to\) White or bluish white precipitate.
(D) \({\mathrm{MgCl}}_{2}+{\mathrm{K}}_{4}\left[\mathrm{Fe}(\mathrm{CN}{)}_{6}\right]\to\) Blue precipitate.
(E) \({\mathrm{BaCl}}_{2}+{\mathrm{K}}_{4}\left[\mathrm{Fe}(\mathrm{CN}{)}_{6}\right]\), neutralised with \(\mathrm{NaOH}\to\) White precipitate.
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