Question

निम्नलिखित में ऑक्सीकरण तथा अपचायक की पहचान कीजिए-
(a) `2AgBr+C_(6)H_(6)O_(2) to 2Ag+2HBr+C_(6)H_(4)O_(2)`
(b) `HCHO+2[Ag(NH_(3))_(2)]^(+)+3OH^(-) to 2Ag+HCOO^(-)+4NH_(3)+2H_(2)O`
(c) `HCHO+2Cu^(2+)+5OH^(-) to Cu_(2)O+HCOO^(-)+3H_(2)O`
(d) `N_(2)H_(4)+2H_(2)O_(2) to N_(2) +4H_(2)O`
(e) `CuS+HNO_(3) to CuNO_(3))_(2)+NO+H_(2)O+S`
(f) `Pb+PbO_(2)+2H_(2)SO_(4) to PbSO_(4)+2H_(2)O`

Answer 1

`{:(,"ऑक्सीकारक","अपचायक"),((a),AgBr,C_(6)H_(6)O_(2)),((b),[Ag(NH_(3))_(2)]^(+),HCHO),((c),Cu^(2+),HCHO),((d),H_(2)O_(2),N_(2)H_(4)),((e),HNO_(3),CuS),((f),PbO_(2),Pb):}`