Q 1688467307.     ` Fe^{3+}` is reduced to ` Fe^{2+}` by using :

JEE Paper 1

(This question may have multiple correct answers)

A `H_2O_2` in presence of `NaOH`
B `Na_2O_2` in water
C `H_2O_2` in presence of `H_2SO_4`
D `Na_2O_2` in presence of `H_2SO_4`
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