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Question

Which one of the following pairs of reactants does not form oxygen when they react with each other?

A
F2, NaOH solution (hot, cont)
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B
F2,H2O
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C
Cl2, NaOH solution (cold, dilute)
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D
CaOCl2, H2SO4 (dilute, small amount)
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Solution

The correct option is D CaOCl2, H2SO4 (dilute, small amount)
Chlorine is liberated by the action of dilute acids on bleaching powder.

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