Q4 of 18 Page 9

Answer the following :

Name three metals which do not react with water, under normal conditions.

Copper, Aluminium, and tin are the metals which do not react with water under normal conditions. This is the reason why kitchen utensils, vessels are made up of these metals so that when water is stored it does not react with water.


More from this chapter

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4

Answer the following :

Define the terms efflorescence and deliquescence.

 4

Answer the following :

Give two reasons to prove that water is a compound and not an element.

 4

Answer the following :

Name the products formed when the following oxides are dissolved in water. Write a balanced equation.


a. Sulphur dioxide


b. Potassium oxide


c. Carbon dioxide


d. Calcium oxide

 4

Answer the following :

State the reasons for hardness in water.