निम्नलिखित में से कौन-सा कथन सत्य नहीं है? (A) \( \left(\mathrm{NH}_{4}\right)_{2} \mathrm{~S}_{...

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निम्नलिखित में से कौन-सा कथन सत्य नहीं है?
(A) \( \left(\mathrm{NH}_{4}\right)_{2} \mathrm{~S}_{2} \mathrm{O}_{8} \) में \( \mathrm{S} \) की ऑक्सीकरण अवस्था \( +6 \) है
(B) \( \mathrm{OsO}_{4} \) में 0 की ऑक्सीकरण अवस्था \( +8 \) है
(C) \( \mathrm{H}_{2} \mathrm{SO}_{5} \) में \( \mathrm{S} \) की ऑक्सीकरण अवस्था \( +8 \) है
(D) \( \mathrm{KO}_{2} \) में 0 की ऑक्सीकरएण अवस्था \( -1 / 2 \) है
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