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A violet compound of manganes (A) deco...

A violet compound of manganes
(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 `KNO_(3)` to give compound

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 liberated and a compound (D) of manganese along with other products is formed. Identify compounds (A) to (D) and also explain the reactions involved.

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.

Knowledge Check

  • A violet compound of manganese (P) decomposes on heating to liberate oxygen and compounds (Q) and (R ) of manganese are formed. Compound ( R) reacts with KOH in the presence of potassium nitrate to give compound (Q). On heating compound (R ) with conc. H_2SO_4 and NaCl, Chlorine gas is liberated and a compound (S) of manganese along with other products is formed. Compound P to S are

    A
    `{:(" "P," "Q," "R," "S),(KMnO_4,K_2MnO_4,MnCl_2,MnO_2):}`
    B
    `{:(" "P," "Q," "R," "S),(K_2MnO_4,MnO_2,KMnO_4,MnCl_2):}`
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    `{:(" "P," "Q," "R," "S),(KMnO_4,K_2MnO_4,MnO_2,MnCl_2):}`
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    `{:(" "P," "Q," "R," "S),(K_2MnO_4,KMnO_4,MnO_2,MnCl_2):}`

  • Which compound will liberate oxygen when reacted with water

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  • An inorganic salt (A) is decomposed on heating ot gvie two products (B) and (C). Compound (C) is a liquid at room temeperture and is neutral to gas. Compounds (A), (B) and (C) are

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    `NH_(4)NO_(2),NO,H_(2)O`
    C
    `CaO,H_(2)O,CaCl_(2)`
    D
    `Ba(NO_(3))_(2),H_(2)O,NO_(2)`

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