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Question

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How are metal carbonates formed? Give an example along with the chemical equation of the reaction involved.

Solution

When metal oxides react with carbon dioxide, they produce metal carbonates.
For example:

i) CaO +CO₂ $\underset{}{\to}$ CaCO₃

ii) Na₂O +CO₂ $\underset{}{\to}$ Na₂CO₃

Metal carbonate can be prepared form hydroxide.
For example:
i) Ca(OH)₂ +CO₂ $\underset{}{\to}$ CaCO₃ +H₂O

Some More Questions From Control and Coordination Chapter

How do metals react with bases?

What is a neutralization reaction? Give some examples.

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?

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?

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