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A violet compound of manganes (B). On ...

A violet compound of manganes
(B). On heating compound (C) with conc. `H_(2) SO_(4)` and NaCl, `C_(12)` gas is liberated and compound (D) of manganese is formed. Identify A, B, C, D alongwith reactions involved.

Text Solution

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`A : KNnO_(3) B: K_(2) MnO_(4) C : MnO_(2) D: MnCI_(2)`
`KMnO_(4) overset(Delta )(to) K_(2) MnO_(4) + MnO_(2) + O_(2)`
`MnO_(2) + KOH + KNO_(3) to K_(2) MnO_(4)`
`(c ) " " ( B )`
`MnO_(2) + NaCI + "conc" H_(2) SO_(4) to MnSI_(2)`
`(C ) " " (D )`
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A violet compound of manganese (A) decomposes on heating to liberate oxygen and compounds (B) and (C ) of manganese are formed. Compound (C ) reacts with KOH in the presence of potassium nitrate to give compound (B). On heating compound (C ) with conc. H_(2)SO_(4) and NaCl, chlorine gas is liberate and a compound (D) of manganese alongwith other products is formed. Identify compounds A to D and also explain the reaction involved.

Which of the following compound does not liberated oxygen gas on warming with conc. H_(2)SO_(4) ?