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निम्न अभिक्रिया में ओजोन किस अभिक्रिया में ऑक्सीकारक व किसमे अपचायक का कार्य करती है ?
(i) `PbS+4O_(3) to PbSO_(4) +4O_(2)`
(ii) `H_(2) O_(2) +O_(3) to H_(2) O+ 2O_(2)`

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प्रथम अभिक्रिया में S ऑक्सीकरण `(S^(2-) to S^(6+)+8e)` हो रहा है अतः `O_(3)` ऑक्सीकारक है । द्वितीय अभिक्रिया में पारस्परिक अपचयन हो रहा है ।

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