Hydrogen Multiple Choice Questions and Answers

1. A hydrogen fuel cell is...............times more efficient than an engine

1. 1
2. 3 - 2
3. 8 - 7
4. 10

2. D₂O has higher value of following physical parameters than H₂O, except

1. Molecular Mass
2. Melting Point
3. Density
4. Dielectric Constant

3. Elements of which of the following group(s) of periodic table do not form hydrides.

1. Groups 7, 8, 9
2. Group 13
3. Groups 15, 16, 17
4. Group 14

4. How long does it take to fill your cars hydrogen tank at a fueling station?

1. 3-5 minutes
2. 8 minutes
3. 15 minutes
4. about 60 minutes

5. How many hydrogen fueling stations are operational in the U.S.?

1. 8
2. 100
3. 12
4. 68

6. Hydrogen peroxide is

1. an oxidising agent
2. a reducing agent
3. both an oxidising and a reducing agent
4. neither oxidising nor reducing agent

7. Hydrogen peroxide is obtained by the electrolysis of

1. water
2. sulphuric acid
3. hydrochloric acid
4. fused sodium peroxide

8. Hydrogen resembles halogens in many respects for which several factors are responsible. Of the following factors which one is most important in this respect?

1. Its tendency to lose an electron to form a cation.
2. Its tendency to gain a single electron in its valence shell to attain stable electronic configuration.
3. Its low negative electron gain enthalpy value.
4. Its small size.

9. In what form can you store hydrogen?

1. Gas
2. Liquid
3. Solid
4. All of the above

10. Only one element of..................forms hydride

1. group 6
2. group 7
3. group 8
4. group 9