(i) A powdered substance (A) on treatment with fusion mixture gives a green coloured compound (B). (ii) The solution of (B) in boiling water on acidification with dilute `H_(2)SO_(4)` gives a pink coloured compound `(C )`. `(iii)` The aqueous solution of (A) on treatment with NaOH and `Br_(2)-` water gives a compound (D). (iv) A solution of (D) in conc. `HNO_(3)` on treatment with lead peroxide at boiling temperature produced a compound (E) which was of the same coloure at that of (C). (v) A solution of (A) on treatment with a solution of barium chloride gave a white precipitate of compound (F) Which was insoluble in conc. `HNO_(3)` and conc. HCl. The oxidation state of central metal ions of (A), (B) and (C ) compounds are respectively `:`A. `+II,+VI and +VII`B. `+II, +VI and +VI`C. `+II,+VII and +VIII`D. `+VI,+VII and +VII`

(i) A powdered substance (A) on treatment with fusion mixture gives a

1.	(i) A powdered substance (A) on treatment with fusion mixture gives a green coloured compound (B). (ii) The solution of (B) in boiling water on acidification with dilute `H_(2)SO_(4)` gives a pink coloured compound `(C )`. `(iii)` The aqueous solution of (A) on treatment with NaOH and `Br_(2)-` water gives a compound (D). (iv) A solution of (D) in conc. `HNO_(3)` on treatment with lead peroxide at boiling temperature produced a compound (E) which was of the same coloure at that of (C). (v) A solution of (A) on treatment with a solution of barium chloride gave a white precipitate of compound (F) Which was insoluble in conc. `HNO_(3)` and conc. HCl. The oxidation state of central metal ions of (A), (B) and (C ) compounds are respectively `:`A. `+II,+VI and +VII`B. `+II, +VI and +VI`C. `+II,+VII and +VIII`D. `+VI,+VII and +VII`
Answer» Correct Answer - A (A) In `MnSO_(4),=+II,` (B) `MnO_(4)^(2-)=+VI,` (C) `MnO_(4)^(-)=+VII`

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