
Sodium reacts with carbon dioxide and water to form:

Important Questions on Air
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion A :- Carbon forms two important oxides and . is neutral whereas is acidic in nature.
Reason R : can combine with water in a limited way to form carbonic acid, while is sparingly soluble in water.
In the light of the above statements, choose the most appropriate answer from the options given below :-



Give chemical equation for the reaction of carbon dioxide with water.

Give a reason for the following.
The fizz is formed in aerated drinks.


A. Plants take in oxygen and give out carbon dioxide.
B. Plants take in carbon dioxide and give out oxygen.

Give chemical equation for the reaction of carbon dioxide with alkalis.

Write scientific reasons. Limewater turns milky when is passed through it.


Carbon dioxide turns lime water milky. But if passed for a long time, the solution becomes clear again.

Circle the odd one and give reason for your choice.
Carbon dioxide, chlorophyll, sunlight, oxygen


Give chemical equation for the reaction of carbon dioxide with litmus solution.







