NCERT Question 11 - Chapter 4 Class 7 - Heat

Stainless steel pans are usually provided with copper bottoms. The reason for this could be that

1. copper bottom makes the pan more durable.
2. such pans appear colourful.
3. copper is a better conductor of heat than stainless steel.
4. copper is easier to clean than stainless steel.

Answer:

• Copper is a better conductor than stainless steel. 
• This allows the pan to be heated more efficiently , and provides a higher temperature and conductivity .

The correct answer is (c) copper is a better conductor of heat than stainless steel.