When carbon dioxide is bubbled into lime water, a white cloud appears.

(i) Write an equation to show the reaction between carbon dioxide and water.
(ii) Name and write the formula of the product.
(iii) What is the chemical name for limewater.
(iv) Write the equation for the chemical reaction between limewater and the product of water + CO₂ Name the product.

Solution

(i) Reaction between carbon dioxide and water.
CO₂ + H₂O → H₂CO₃
(ii) Carbonic acid, H₂CO₃.

(iii) Calcium hydroxide

(iv) Ca(OH)₂ + H₂CO₃→ CaCO₃ + 2H₂O.
The main product is calcium carbonate.

Some More Questions From Control and Coordination Chapter

What are non-metallic oxides? Substantiate your answer.

Take 5 ml hydrochloric acid in a boiling tube or a conical flask. Add a few pieces of zinc granules to it.

(a) What do you observe on the surface of zinc granules?
(b) Name the gas evolved.
(c) What happens when the above gas is passed through soap solution?
(d) What happens when a burning candle is brought near the gas filled tube?

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Control And Coordination

Some More Questions From Control and Coordination Chapter

What are non-metallic oxides? Substantiate your answer.

Name four acids and bases. Write their formulae.

Name the various kind of oxides and mention their properties.

What are acids? How are they produced?

Mention important characteristics of acids.

Why the vessels of copper and brass need ‘Kalai’?

How can you test the presence of an acid in any substance?

Why are acids not stored in metal containers? Containers/vessels made from which material are safe to store acids.

A solution turns red litmus paper blue. What does this indicate about the chemical nature of the solution?

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