Question

# $$KMnO_4$$ reacts with $$H_2O_2$$ in an acidic medium. The number of moles of oxygen produced per mole of $$KMnO_4$$ is?

A
2.5
B
5
C
1.25
D
2

Solution

## The correct option is C $$2.5$$The overall chemical reaction can be written as:$$2KMnO_4+5H_2O_2+3H_2SO_4\rightarrow 5O_2+2MnSO_4+K_2SO_4+8H_2O$$If we divide throughout by 2, the number of moles of Oxygen produced per mole of $$KMnO_4$$ will be 2.5.Chemistry

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