MnO_(2) is the most important oxide of manganese , MnO_(2) occurs natually as the black coloured mineral pyrolusite. It is an oxidising agent, and decomposes to Mn_(3)O_(4) on heating to 530^(@)C. It is used in the preparation of potassium permanaganate and in the productioon of Cl_(2) gas. Over half million tonnes per year of MnO_(2) is used in dry batteries. Q.In the laboratory, MnO_(2) is made by:

MnO_(2) is the most important oxide of manganese , MnO_(2) occurs natu

1.	MnO_(2) is the most important oxide of manganese , MnO_(2) occurs natually as the black coloured mineral pyrolusite. It is an oxidising agent, and decomposes to Mn_(3)O_(4) on heating to 530^(@)C. It is used in the preparation of potassium permanaganate and in the productioon of Cl_(2) gas. Over half million tonnes per year of MnO_(2) is used in dry batteries. Q.In the laboratory, MnO_(2) is made by:
Answer» heating MN in `O_(2)` oxidising `Mn^(2+)` in air electrolytic oxidation of `MnSO_(4)` PRECIPITATING `MnO_(2)` from SOLUTION when PERFORMING titration of `KMnO_(4)` in alkaline medium Answer :D