Electrolysis of Water

Q. <!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--> What are strong and weak electrolytes? [4 Mark]

Q.

Highly pure hydrogen (99.9% ) can be obtained from:

1. Electrolysis of water

2. Electrolysis of heavy water

3. All of the above

4. Reacting Zn with Dil H₂SO₄

Q.

Hydrogen is prepared by the ___ of water using platinum electrode.

Q. Hydrogen is commercially prepared by the electrolysis of acidified water.

1. False
2. True

Q. Which gas is evolved at the anode during electrolysis of water?

1. Chlorine
2. Hydrogen
3. Nitrogen
4. Oxygen

Q. electrodes are used in the electrolysis of acidified water.

1. Pt
2. Ni
3. Fe

Q. Shown below is the electrolysis of water. Identify the electrode in which hydrogen gas will be collected.

1. 
2. 
3. 

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

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

Q. The ratio of the volumes of hydrogen and oxygen obtained on electrolysis of water is ____.

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

Q. Hydrogen gas is collected in laboratories by downward displacement of water as it is soluble in water.

1. True
2. False