Which of the following statements regarding carbon dioxide is/are correct?

1. It is prepared on large scale by the action of water on lime.
2. In the solid form it can be used as a refrigerant.

Select the correct answer using the codes given below.
a) 1 only
b) 2 only
c) Both 1 and 2
d) None of the above

Ans– b

Explanation– Carbon dioxide is prepared on the large scale by heating of calcium carbonate at 850 degree celcius. Action of water on lime produces calcium hydroxide. Statement 1 is wrong.

Carbon dioxide is used as a refrigent under name dry ice