1. 3.5
2. 1.5
3. -2.5
4. 2.5
2.5
1. +4
2. +8
3. +5
4. +6
+8
1. Gain of electrons
2. Loss of an electronegative element
3. Decrease in the oxidation number of one of the atoms
4. All of these
All of these
1. N2O
2. NO2-
3. NH2OH
4. N2H4
NH2OH
1. HNO3
2. KMnO4
3. H2SO4
4. (COOH)2
(COOH)2
1. SO2+2H2S→2H2O+3S
2. 2Na+O2→ Na2O2
3. Na2O2+H2SO4→Na2SO4+H2O2
4. 4KClO3→ 3KClO4+KCl
Na2O2+H2SO4→Na2SO4+H2O2
1. KMnO4
2. H2S
3. BaO2
4. H2O2
H2O2
1. H2O2
2. Na2O2
3. OF2
4. H2O
OF2
1. + 2/3
2. + 4/3
3. + 4
4. -4/3
+ 4/3
1. +2, +2
2. -2, +2
3. +2, -1
4. -2, +1
-2, +2