Which of the following metal is stored in kerosene?
Zinc
Magnesium
Sodium
Copper
Sodium metal reacts vigorously with oxygen, that’s why we store it in kerosene.
Give reasons for the following :
(a) Sodium and potassium are stored in kerosene.
(b) Copper cannot displace zinc from its salt solution (zinc sulphate solution).
Which of the following metals can be obtained from haematite ore? (a) copper (b) sodium (c) zinc (d) iron
Give reasons for the following.
(a) Aluminium foils are used to wrap food items.
(b) Immersion rods for heating liquids are made up of metallic substances.
(c) Copper cannot displace zinc from its salt solution.
(d) Sodium and potassium are stored in kerosene.