Question

It is difficult to cook rice in an open vessel by boiling it at high altitudes because of:

• A. low boiling point and high pressure
• B. high boiling point and low pressure
• C. low boiling point and low pressure
• D. high boiling point and high pressure

Answer 1

The correct option is C low boiling point and low pressure

At high altitude pressure is low and therefore the boiling point is also low. In this case, water starts boiling below its boiling point but rice cooks at $100$. So, it is difficult to cook rice at high altitudes.