Extra 40 multiple-choice questions (MCQs) with answers from Chapter:3 Metals and Non-Metals for Class 10 CBSE Science:

MCQs:

Which of the following is a metal?

 

a) Sulphur

 

b) Oxygen

 

c) Aluminium

 

d) Carbon

 

Ans:

c) Aluminium

 

Which non-metal is a good conductor of electricity?

 

a) Carbon (graphite)

 

b) Sulphur

 

c) Phosphorus

 

d) Oxygen

 

Ans:

a) Carbon (graphite)

 

Which metal is the most reactive?

 

a) Copper

 

b) Iron

 

c) Potassium

 

d) Silver

 

Ans:

c) Potassium

 

Which of the following metals is found in the liquid state at room temperature?

 

a) Gold

 

b) Mercury

 

c) Silver

 

d) Aluminium

 

Ans:

b) Mercury

 

Which property of metals makes them suitable for making electrical wires?

 

a) Malleability

 

b) Sonority

 

c) Ductility

 

d) Lustre

 

Ans:

c) Ductility

 

Which of the following is not a property of metals?

 

a) Malleability

 

b) Poor conductivity of heat

 

c) Sonority

 

d) High melting point

 

Ans:

b) Poor conductivity of heat

 

Which metal is the best conductor of electricity?

 

a) Aluminium

 

b) Copper

 

c) Silver

 

d) Gold

 

Ans:

c) Silver

 

The most abundant metal in the Earth's crust is:

 

a) Copper

 

b) Aluminium

 

c) Iron

 

d) Gold

 

Ans:

b) Aluminium

 

The property of metals to be drawn into thin wires is called:

 

a) Malleability

 

b) Ductility

 

c) Sonority

 

d) Hardness

 

Ans:

b) Ductility

 

Which gas is produced when a metal reacts with acid?

 

a) Oxygen

 

b) Carbon dioxide

 

c) Hydrogen

 

d) Nitrogen

 

Ans:

c) Hydrogen

 

Which of the following metals does not react with water?

 

a) Sodium

 

b) Calcium

 

c) Gold

 

d) Potassium

 

Ans:

c) Gold

 

A metal that reacts with water to produce hydrogen gas is:

 

a) Aluminium

 

b) Iron

 

c) Sodium

 

d) Copper

 

Ans:

c) Sodium

 

The non-metal used in the manufacture of matches is:

 

a) Sulphur

 

b) Carbon

 

c) Phosphorus

 

d) Oxygen

 

Ans:

c) Phosphorus

 

Which of the following metals does not corrode easily?

 

a) Iron

 

b) Aluminium

 

c) Gold

 

d) Zinc

 

Ans:

c) Gold

 

Which metal is used to galvanize iron?

 

a) Copper

 

b) Zinc

 

c) Aluminium

 

d) Magnesium

 

Ans:

b) Zinc

 

Which of the following is an amphoteric metal?

 

a) Zinc

 

b) Copper

 

c) Lead

 

d) Silver

 

Ans:

a) Zinc

 

Which of the following non-metals is used in water purification?

 

a) Sulphur

 

b) Iodine

 

c) Chlorine

 

d) Phosphorus

 

Ans:

c) Chlorine

 

Which metal is used in thermometers?

 

a) Aluminium

 

b) Mercury

 

c) Copper

 

d) Zinc

 

Ans:

b) Mercury

 

Which of the following metals is used in making aircraft?

 

a) Lead

 

b) Iron

 

c) Aluminium

 

d) Copper

 

Ans:

c) Aluminium

 

Which of the following non-metals is used in making pencil lead?

 

a) Sulphur

 

b) Carbon (Graphite)

 

c) Phosphorus

 

d) Silicon

 

Ans:

b) Carbon (Graphite)

 

Which non-metal is used in the production of fertilizers?

 

a) Oxygen

 

b) Nitrogen

 

c) Carbon

 

d) Sulphur

 

Ans:

b) Nitrogen

 

Which metal is most suitable for making cooking utensils?

 

a) Copper

 

b) Silver

 

c) Aluminium

 

d) Iron

 

Ans:

c) Aluminium

 

The metal that is liquid at room temperature is:

 

a) Sodium

 

b) Mercury

 

c) Iron

 

d) Lead

 

Ans:

b) Mercury

 

The most malleable metal is:

 

a) Aluminium

 

b) Copper

 

c) Gold

 

d) Iron

 

Ans:

c) Gold

 

The non-metal that exists in different forms (allotropes) is:

 

a) Phosphorus

 

b) Sulphur

 

c) Carbon

 

d) Oxygen

 

Ans:

c) Carbon

 

Which metal is stored in kerosene to prevent reaction with air?

 

a) Sodium

 

b) Iron

 

c) Aluminium

 

d) Copper

 

Ans:

a) Sodium

 

Which of the following is not a characteristic property of non-metals?

 

a) Poor conductors of electricity

 

b) High melting and boiling points

 

c) Brittle

 

d) Dull appearance

 

Ans:

b) High melting and boiling points

 

The metal which does not react with hydrochloric acid is:

 

a) Zinc

 

b) Iron

 

c) Copper

 

d) Aluminium

 

Ans:

c) Copper

 

The metal used for making filaments in electric bulbs is:

 

a) Copper

 

b) Tungsten

 

c) Aluminium

 

d) Iron

 

Ans:

b) Tungsten

 

The process of heating ore in the presence of oxygen is called:

 

a) Smelting

 

b) Roasting

 

c) Calcination

 

d) Refining

 

Ans:

b) Roasting

 

The metal that does not react with dilute acids is:

 

a) Zinc

 

b) Iron

 

c) Copper

 

d) Aluminium

 

Ans:

c) Copper

 

The element that forms the hardest known natural substance is:

 

a) Silicon

 

b) Carbon (Diamond)

 

c) Sulphur

 

d) Phosphorus

 

Ans:

b) Carbon (Diamond)

 

Which metal is coated on iron to prevent rusting?

 

a) Aluminium

 

b) Zinc

 

c) Copper

 

d) Lead

 

Ans:

b) Zinc

 

The non-metal used to disinfect drinking water is:

 

a) Carbon

 

b) Iodine

 

c) Chlorine

 

d) Phosphorus

 

Ans:

c) Chlorine

 

The process of extracting pure metal from ore is called:

 

a) Corrosion

 

b) Refining

 

c) Roasting

 

d) Smelting

 

Ans:

d) Smelting

 

The best conductor of electricity among the following is:

 

a) Aluminium

 

b) Copper

 

c) Silver

 

d) Gold

 

Ans:

c) Silver

 

The element essential for making bones and teeth strong is:

 

a) Iron

 

b) Calcium

 

c) Zinc

 

d) Magnesium

 

Ans:

b) Calcium

 

Which non-metal is used in making explosives?

 

a) Oxygen

 

b) Sulphur

 

c) Phosphorus

 

d) Nitrogen

 

Ans:

c) Phosphorus

 

The metal present in blood

haemoglobin

is:

 

a) Copper

 

b) Zinc

 

c) Iron

 

d) Calcium

 

Ans:

c) Iron

 

Which metal is used in making coins?

 

a) Silver

 

b) Copper

 

c) Aluminium

 

d) All of these

 

Ans:

d) All of these