Question

(a)
oxygen?
12. Give reasons
Platinum, gold and silver are
used to make jewellery.
Sodium, potassium and
lithium are stored under oil.
Aluminium is a highly reactive
metal, yet it is used to make
utensils for cooking.
Carbonate and sulphide ores
are usually converted into
oxides during the process of
extraction.​

Answer 1

Answer:

1. platinum gold and silver used making jewellery because these metal cannot react with moisture and oxygen .
2. sodium and potassium stored under soil because in open it catches fire immidiately