Q2 of 13 Page 104

Identify the symbols of ions from the box and write against their names.

SO32–, NO3– , HCO3–, OH–, CO32–, HSO4–


Carbonate -


Bisulphate -


Sulphite -


Nitrate -


Hydroxide -


Bicarbonate -

We can observe that all the ions given in the question are negatively charged. All of them are anions. Names of given anions can be written as follows:


More from this chapter

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1

Complete the chemical equations for the following ionisation reactions.

KCl → K+ + ………..


HNO3→ H+ + ……….


Mg(OH)2→ ………. + 2OH–


H2SO4→ 2H+ + ……….


NH4Cl → NH+4 ……….


CaSO4→ ………. + SO2–4

 3

Name the salt formed by the reaction between magnesium hydroxide [Mg(OH)2] and dilute hydrochloric acid [HCl].

Write the chemical equation for the reaction.


Which acid is used for preparing Magnesium sulphate?

 4

List the cations and anions of the substances given in the table.

 5

A little distilled water is taken in a beaker.

A. What is the pH value of distilled water?


B. What happens to the pH value when the following substances are added to the water in the beaker? Justify your answer.


a) Caustic soda


b) Vinegar