Chemistry of Batteries and Water Purification

The video tutorial covers the production of coke by heating coal at 1300°C without air, the use of chlorine for water purification, sulfuric acid in car batteries, and lead in storage batteries.

At what temperature is coal heated to produce coke?

• 1200°C

• 1100°C

• 1300°C

• 1000°C

Which gas is commonly used to purify water?

• Chlorine

• Oxygen

• Nitrogen

• Hydrogen

What acid is found in car batteries?

• Hydrochloric Acid

• Sulfuric Acid

• Nitric Acid

• Acetic Acid

Which of the following is a common component of storage batteries?

• Copper

• Zinc

• Lead

• Aluminum

What is the role of sulfuric acid in a car battery?

• To insulate the battery

• To provide structural support

• To act as an electrolyte

• To cool the battery