Electrolysis

Q.

$P_4+5O_2⟶P_4{O}_{10}$ If 31 g of $P_4$ is reacted with excess of oxygen, the % yield is 60%, then the amount of product formed is.

Q.

Water can be decomposed into hydrogen and oxygen by electrolysis.

1. True

2. False

Q.

The presence of ________ in air controls the process of burning.

1. Oxygen

2. Nitrogen

3. Sulphur dioxide

4. Hydrogen

Q. Which of the following solutions will not conduct electricity?

1. Sugar aqueous solution
2. Brine
3. Copper sulphate aqueous solution
4. Sodium hydroxide aqueous solution

Q.

The volume of hydrogen and oxygen obtained on electrolysis of water is in the ratio ___.

1. 1:2

2. 3:2

3. 2:1

4. 1:3

Q. Which of the following solutions will not conduct electricity?

1. Sugar aqueous solution
2. Brine
3. Copper sulphate aqueous solution
4. Sodium hydroxide aqueous solution

Q. Amount of catalysts (Nickel, platinum) required for hydrogenation of 10 ml liquid ethene. Whats appropriate temperature for hydrogenation using nickel and platinum catalysts?

Q. The diagram given below is the apparatus for electrolysis of water. Identify A, B and C.

1. A - Oxygen, B - Hydrogen, C - Copper plates
2. A - Oxygen, B - Hydrogen, C - Platinum plates
3. A - Hydrogen, B - Oxygen, C - Platinum plates
4. A - Hydrogen, B - Oxygen, C - Copper plates

Q. Electrolysis is a type of redox reaction. give reason

Q.

The ratio of volume in which hydrogen and oxygen are formed due to electrolysis of water is:

1. 2:1
2. 1:2
3. 1:1
4. 3:1

Q. Pure water is a good conductor of electricity.

1. False
2. True

Q. Identify the process and the gas X from the figure of a lab setup, provided below:

1. Destructive distillation of wood coal and $C{O}_2$
2. Destructive distillation of charcoal and coal gas
3. Destructive distillation of coal and $C{O}_2$
4. Destructive distillation of coal and coal gas

Q. Aqueous solution of sodium chloride conducts electricity due to the presence of free _______.

1. electrons
2. ions
3. molecules
4. atoms

Q. Identify the process and the gas X from the figure of a lab setup, provided below:

1. Destructive distillation of wood coal and $C{O}_2$
2. Destructive distillation of coal and coal gas
3. Destructive distillation of charcoal and coal gas
4. Destructive distillation of coal and $C{O}_2$

Q. Water contains oxygen then it make the fire big then how can we stop it

Q.

The process of separation of material by passing direct electric current through the solution is known as ____

1. Separation

2. Segregation

3. Electrolysis

4. Dissociation

Q.

Water can be decomposed into hydrogen and oxygen by electrolysis.

1. Renewable

2. Non renewable

Q. The ratio of volume in which hydrogen and oxygen are formed due to electrolysis of water is:

1. 2:1
2. 1:2
3. 1:1
4. 1:3

Q.

Constituents obtained on the decomposition of water are hydrogen and ____.

1. Hydrogen

2. Carbon dioxide

3. Oxygen

4. Nitrogen