Drying and Dehydrating Agents

Q. How is the ethylene prepared in laboratory? Give balanced equation and procedure. How is the gas prepared and dried?

Q.

Distinguish between drying and dehydrating agent.

Q.

Sulphuric acid was initially called ___.

1. Oil of vitrol

2. Water of Vitriol

3. Fuel of Vitriol

4. Power of Vitriol

Q. Sodium carbonate is known by the common name of .

1. washing soda
2. baking soda
3. caustic soda

Q. In the equation:
$NaOH+HN{O}_3\to NaN{O}_3+H_{2}O$ nitric acid is acting as:

1. Oxidising agent
2. Acid
3. A nitrating agent
4. A dehydrating agent

Q.

What are drying or desiccating agents? Give examples