
During photosynthesis carbon dioxide is given out.

Important Questions on Industrial Chemistry

I) Leads to headache
II) Results in cardiovascular problem
III) Increases the body temperature
IV) Leads to diarrhoea




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


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

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

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.


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

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.


How will you verify the properties of carbon dioxide?

