Q4 of 13 Page 104

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

Salts are neutral compounds which are ionic in nature and dissociate into positive and negative ions when dissolved in water. The positively charged ion is called cation and the negatively charged ion is called anion. Thus in the above question we need to dissociate the given salts into the respective positive and negative ions, which can be done as follows:


More from this chapter

All 13 →
2

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 -

 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?

 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

 6

Some salts are given in column A. Their chemical formulae and uses are given in column B and column C irregularly. Match the columns by identifying the correct chemical formulae and the uses of the salts.