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Some information regardirg a particular,...

Some information regardirg a particular, compound is given below. i) A deep.purple black crystal which' is moderately soluble in water at room temperature and it is prepared from pyrolusite a) İdentify the compound b) Give the chemical reactions involved in the preparation of,this compound - c) Upon heating to 746 K, what happens to this compound? Give the equation

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a) .(KMnO)_(4). b) .2 (MnO)_(2)+4 (KOH)+(O)_(2) rarr 2 (~K)_(1) (MnO)_(d)+2 (H)_(2) (O).
3 (MnO)_(4)^(2 *)+4 (H)^(+) rarr 2 (MnO)_(4)^(2)+(MnO)_(2)+2 (H)_(2) (O)
c) Potássium permanganute on strong heating give potassium manganate. Manganese dioxide and oxygen
2 (KMnO)_(1) rarr (K) (MnO)_(+)+(MnO)_(2)+(O)_(2) ...
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