Which of the following equations depict the oxidising nature of ?
1.
2.
3.
4.
Which of the following equation depicts reducing nature of ?
1.
2.
3.
4.
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.
Which of the following reactions increases production of dihydrogen from synthesis gas?
1.
2.
3.
4.
When sodium peroxide is treated with dilute sulphuric acid, we get _____.
1. | Sodium sulphate and water |
2. | Sodium sulphate and oxygen |
3. | Sodium sulphate, hydrogen and oxygen |
4. | Sodium sulphate and hydrogen peroxide |
Hydrogen peroxide is obtained by the electrolysis of ______.
1. water
2. sulphuric acid
3. hydrochloric acid
4. fused sodium peroxide
Which of the following reactions is an example of use of water gas in the synthesis of other compounds?
1.
2.
3.
4.
Which of the following ions will cause hardness in water sample?
1. Ca2+
2. Na+
3. Cl-
4. K+
A water softening reagent among the following is -
1.
2.
3.
4.
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