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Question

Which of the following statements is not correct regarding Mn3O4?

A
It is black in colour and the most stable oxide at high temperature
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B
It has spinel structure
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C
It contains both Mn(+II)andMn(+III),i.e.,(MnIIMnIII2O4)
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D
O atoms are closed packed with Mn(+III) in tetrahedral holes and Mn(+II) in octahedral holes
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Solution

The correct option is D O atoms are closed packed with Mn(+III) in tetrahedral holes and Mn(+II) in octahedral holes

Mn3O4 is black in colour and the most stable oxide at high temperature. It is formed by heating any oxide or hydroxide of Mn to 1000C. It contains both Mn(+II) and Mn(+III), i.e.,(MnIIMnIII2O4) and has a spinel structure. The O atoms are closed packed with Mn(+III) in octahedral holes and Mn(+II) in tetrahedral holes.

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