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MnO(2) on ignition converts into Mn(3)O(...

`MnO_(2)` on ignition converts into `Mn_(3)O_(4)`. A sample of pyrolusite having 75% `MnO_(2)`, 20% inert impurities and rest water is ignited in air to constant mass. What is the percentage of Mn in the ignited sample ?

A

0.246

B

37

C

55.24

D

0.7405

Text Solution

Verified by Experts

The correct Answer is:
C
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NARENDRA AWASTHI-STOICHIOMETRY-Level 2 (Q.1 To Q.30)
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  2. 1 M NaOH solution was slowly added in to 1000 mL of 183.75 g impure H(...

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  3. MnO(2) on ignition converts into Mn(3)O(4). A sample of pyrolusite hav...

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  4. A 1.0g sample of a pure organic compound cotaining chlorine is fused w...

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  5. A 0.6gm sample consisting of only CaC(2)O(4) and MgC(2)O(4) is heated ...

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