Electrochemcial Reaction

Q.

What is a primary cell? Give two examples.

Q.

Explain which type of change occurs when water is electrolyzed?

Q. By which process can we separate camphor from ammonium chloride?

1. Filtration
2. Sublimation
3. Dissolution and evaporation
4. Distillation

Q.

The chemical reaction either caused or accompanied by the passage of an electric current are called _______ reactions.

1. Endothermic

2. Electrochemical

3. Photochemical

4. Thermal

Q. Define:
Electrochemical reaction. Give one example.

Q. A mixture of sodium chloride and $H_{2}O$ can be separated by:

1. Filteration
2. Handpicking
3. Evaporation
4. Distillation

Q. Voltaic cell is a type of ____________.

1. electrochemical cell
2. fuel cell
3. none of the above
4. electrolytic cell

Q. Define:
Electrochemical reaction.
Give one example

Q. Hydrolysis of salt is an example of Electrolytic dissociation.

Q. Complete the following chemical equation:
$F{e}^{3+}+S{O}_2+H_{2}O\to$.

Q.

Classify the following reaction on the basis of energy change :

$2\mathrm{NaCl}\left(\mathrm{l}\right)\stackrel{\mathrm{Electric}\mathrm{current}}{\to }2\mathrm{Na}\left(\mathrm{s}\right)+{\mathrm{Cl}}_2\left(\mathrm{g}\right)$

Q. Concentration cell is a type of

1. Electrolytic cell
2. Electrochemical cell
3. Furnace
4. all of these

Q.

The cells used in a wrist watch undergo:

1. physical change
2. periodic change
3. chemical change
4. none of the above