Q4 of 102 Page 76

Name two metals which are soft and can be easily cut with a knife.

The two metals which are soft and easily cut with a knife are Sodium and potassium. The freshly cut surface of these metals is shiny but it tarnishes quickly on contact with air. This is because these metals react with oxygen and water and becomes dull grey in colour.


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2

Name one metals and one nonmetal which exist in liquid state at room temperature.

 3

Name the property;

(a) Which allows metals to be hammered into thin sheets.


(b) Which enables metals to be drawn into wires.

 5

If a metal coin is dropped on hard floor, it produces a ringing sound. What is this property of metals known as?

 6

Name the property of iron metal due to which it can be hammered to make objects of different shapes such as an axe, a spade or a shovel.