Redox Reactions
Give the points of difference between a redox reaction occurring in a beaker and in a cell ?
Redox reaction in a beaker(Direct redox reaction) | Redox reaction in an electrochemical cell (Indirect redox reaction) |
1. Oxidation and reduction take place in the same vessel. | 1. Oxidation and reduction take place in different vessels called half cells. |
2. The transference of electrons occurs directly in the solution. | 2. The transference of electrons takes place through connecting wires. |
3. Energy is released in the form of heat. | 3. Most of the energy is released in the form of electrical energy. |
4. The cations accept the electrons at the surface of the cathode and metal formed gets deposited at the cathode. | 4. The cations accept the electrons in solution and metal formed settles down as a precipitate. |
5. Reaction quickly proceeds to completion. | 5. The reaction does not proceed to completion. |
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What is reducing agent (electronic concept)?
Can oxidation occur without reduction?
What are redox reactions?
What are indirect redox reactions?
Write formulas for the following compounds:
(a) Mercury (II) chloride
(b) Nickel (II) sulphate
(c) Tin (IV) oxide
(d) Thallium (I) sulphate
(e) Iron (III) sulphate
(f) Chromium (III) oxide
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