Advertisements
Advertisements
प्रश्न
Distinguish between oxidation and reduction.
Advertisements
उत्तर
| Sr. No. | Oxidation | Reduction |
| 1. | According to the classical concept, oxidation is a process of the addition of oxygen or the removal of hydrogen. | Reduction is a process of the removal of oxygen or the addition of hydrogen. |
| 2. | Removal of hydrogen \[\ce{2H2S + O2 -> H2O + 2S}\] |
Removal of oxygen \[\ce{ZnO + C -> Zn + CO}\] |
| 3. | Addition of oxygen \[\ce{C + O2 -> CO2}\] |
Addition of hydrogen \[\ce{Ca + H2 -> CaH2}\] |
| 4. | According to the electronic concept, the loss of electrons is called an oxidation reaction. \[\ce{Ca -> Ca^2+ + 2e^-}\] |
According to the electronic concept, the gain of electrons is called a reduction reaction. \[\ce{Zn^2+ + 2e^- -> Zn}\] |
| 5. | During oxidation, the oxidation number increases. | During reduction, the oxidation number decreases. |
| 6. | During oxidation, the reducing agent gets oxidised. | During reduction, the oxidising agent gets reduced. |
संबंधित प्रश्न
Choose the disproportionation reaction among the following redox reactions.
Total number of electrons present in 1.7 g of ammonia is
What do you understand by the term oxidation number?
Balance the following equation by the oxidation number method.
\[\ce{K2Cr2O7 + Kl + H2SO4 -> K2SO4 + Cr2(SO4)3 + I2 + H2O}\]
Balance the following equation by the oxidation number method.
\[\ce{Cu + HNO3 -> Cu(NO3)2 + NO2 + H2O}\]
Balance the following equation by the ion electron method.
\[\ce{Zn + NO^-_3 ->Zn^2+ + NO}\] (in acid medium)
Reducing agent is a species that ____________.
In the redox reaction, \[\ce{2MnO^-_4 + SO^{2-}_3 + H2O -> 2MnO^{2-}_4 + SO^{2-}_4 + 2H^+}\], the reductant is:
In the cell represented by \[\ce{Pb(s) | Pb^{2+} (1 M) || Ag+ (1 M) | Ag(s)}\], the reducing agent is ______.
Which of the following represents a redox reaction?
