Question

Give reasons,

A, platinum, gold and silver are used to make jewellery.

B, sodium, potassium and lithium are stored under oil.

C, aluminium in a highly reactive metal, still it is used to make utensils for cooking.

Answer 1

A. strongness, lustrous (shining) nature
B. highly reactive unable to react with oil
C. aluminium is neutralized do mixing some metals and make it into alloy and used to make utensils