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Control And Coordination

Question
CBSEENSC10010968
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Complete and balance the following chemical equations:

(i) Na2CO3(s) + H2SO4(aq) →
(ii) Na2CO3(aq) + CO2(g) + H2O(l) →
(iii) Na2CO3(s) + HCl(aq) →

Solution

(i) Na2CO3(g) + H2SO4(aq) → Na2SO4(ag) + CO2(g) + H2O(l)

(ii) Na2CO3(aq) + CO2(g) + H2O(l) → 2NaHCO3(aq)

(iii) Na2CO3(s) + 2HCl(g) → 2NaCl(aq) + H2O(l) + CO2(g)

Some More Questions From Control and Coordination Chapter

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.

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Mention important characteristics of acids.

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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.

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