Which of the following statements about \( \mathrm{Na} 2 \mathrm{O} 2 \) is not correct ? (a) \(...

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Which of the following statements about \( \mathrm{Na} 2 \mathrm{O} 2 \) is not correct ?
(a) \( \mathrm{Na}_{2} \mathrm{O}_{2} \) oxidises \( \mathrm{Cr}^{3+} \) to \( \mathrm{CrO}_{4}^{2-} \) in acid medium
(b) It is diamagnetic in nature
(c) It is the super oxide of sodium
(d) It is a derivative of \( \mathrm{H}_{2} \mathrm{O}_{2} \)
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