Oxidation never involves
a.Addition of oxygen
b.Addition of electronegative element
c.Addition of electron
d.Removal of electropositive element
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Answer:
C) addition of electron
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(c) Addition of electron
Explanation:-
(a) Addition of Oxygen: Reduction is a chemical reaction in which oxygen is removed from any chemical species (atom, ion or molecule).
2Mg + O2 → 2MgO
S + O2 → SO2
2CO + O2 → 2CO2
Na2SO3 + H2O2 → Na2SO4 + H2O
(b) Addition of an Electronegative Element: Oxidation is a chemical reaction in which an electronegative element is added into any chemical species (atom, ion or molecule).
Fe+ S → FeS (Oxidation of iron)
SnCl2 + Cl2 → SnCl4 (Oxidation of stannous chloride)
(d) Removal of an Electropositive Element: Oxidation is a chemical reaction in which an electropositive element is removed from any chemical species (atom, ion or molecule).
2KI + H2O2 → 2KOH + I2 (Oxidation of potassium iodide)
2K2MnO4 + Cl2 → 2KCl + 2KMnO4 (Oxidation of potassium manganate)
2KI + Cl2 → 2KCl + I2 (Oxidation of potassium iodide)
Hence, oxidation never involves addition of electron :-)
Explanation:-
(a) Addition of Oxygen: Reduction is a chemical reaction in which oxygen is removed from any chemical species (atom, ion or molecule).
2Mg + O2 → 2MgO
S + O2 → SO2
2CO + O2 → 2CO2
Na2SO3 + H2O2 → Na2SO4 + H2O
(b) Addition of an Electronegative Element: Oxidation is a chemical reaction in which an electronegative element is added into any chemical species (atom, ion or molecule).
Fe+ S → FeS (Oxidation of iron)
SnCl2 + Cl2 → SnCl4 (Oxidation of stannous chloride)
(d) Removal of an Electropositive Element: Oxidation is a chemical reaction in which an electropositive element is removed from any chemical species (atom, ion or molecule).
2KI + H2O2 → 2KOH + I2 (Oxidation of potassium iodide)
2K2MnO4 + Cl2 → 2KCl + 2KMnO4 (Oxidation of potassium manganate)
2KI + Cl2 → 2KCl + I2 (Oxidation of potassium iodide)
Hence, oxidation never involves addition of electron :-)
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