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Control And Coordination

Question
CBSEENSC10010806
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What are acids? How are they produced?

Solution

(a) Acids are sour in taste and change the colour of blue litmus to red, Acid contain H+ ion in solution. 

(b) They are produced when oxides of non-metals react with water.
Common acids are: (i) HCl—Hydrochloric acid, (ii) H2SO4—Sulphuric acid, (iii) HNO3— Nitric acid etc.

Some More Questions From Control and Coordination Chapter

What do you understand by concentrated and dilute acids?

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’?

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