Metals and Non metals

Which of the following metal is stored in kerosene?

• (a) Sodium

• (b) Magnesium

• (c) Phosphorus

• (d) Zinc

Which one of the following metals is the most ductile?

• (a) Aluminium

• (b) Copper

• (c) Silver

• (d) Gold

Name the gas evolved when magnesium reacts with dilute hydrochloric acid

• (a) Chlorine

• (b) Oxygen

• (c) hydrogen

• (d) Nitrogen

Which metal reacts readily with cold water?

• (a) Gold

• (b) Silver

• (c) Magnesium

• (d) Potassium

The metal which is not corroded by air, water and acid is

• (a) copper

• (b) zinc

• (c) aluminium

• (d) gold

Chemically rust is

• Iron(II) Oxide

• Iron(I) Oxide

• Hydrated ferric oxide

• Ferrous oxide