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Q.

Which of the following reaction is carried out to obtain pure oxygen?

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a

By the action of water on ozone

b

By heating alkali nitrates

c

By heating KMnO4 Or K2Cr2O7, with conc. H2SO4

d

By adding H2O2 to acidified KMnO4 solution

answer is D.

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Detailed Solution

2MnO4⊖+5H2O2+6H⊕→5O2+2Mn+2+ 8H2O
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