Class 8 Science Chapter 4 Question Papers

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Here we present class 8 science chapter 4 question papers. Also, you will get, different sets of test papers for this chapter.

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Class 8 Science Chapter 4 Question Papers

Chapter Name: - Materials: Metals and Non-metals

Section - A ( Keywords)

Explain the following Keywords

1. Atom
2. Conductor
3. Displacement Reaction
4. Ductility
5. Elements
6. Hardness
7. Malleability
8. Metals
9. Metalloids
10. Non-Metals
11. Sonorous

Class 8 Science Chapter 4 Question Papers

Section - B (Exercise Questions)

Question 1

Which of the following can be beaten into thin sheets?
(a) Zinc (b) Phosphorus (c) Sulphur (d) Oxygen

Question 2

Which of the following statements is correct?
(a) All metals are ductile.
(b) All non-metals are ductile.
(c) Generally, metals are ductile.
(d) Some non-metals are ductile.

Question 3

Fill in the blanks.
(a) Phosphorus is a very _____________ non-metal.
(b) Metals are _____________ conductors of heat and .
(c) Iron is _____________ reactive than copper.
(d) Metals react with acids to produce _____________ gas.

Question 4

Mark ‘T’ if the statement is true and ‘F’ if it is false.
(a) Generally, non-metals react with acids. ( )
(b) Sodium is a very reactive metal. ( )
(c) Copper displaces zinc from zinc sulphate solution. ( )
(d) Coal can be drawn into wires. ( )

Question 5

Some properties are listed in the following Table. Distinguish between metals and non-metals on the basis of these properties.

PropertiesMetals Non-metals
1. Appearance  
2. Hardness  
3. Malleability  
4. Ductility  
5. Heat Conduction  
6. Conduction of Electricity  

Question 6

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.

Question 7

Can you store lemon pickle in an aluminium utensil? Explain.

Question 8

Match the substances given in Column A with their uses given in Column B.

AB
(i) Gold (a) Thermometers
(ii) Iron (b) Electric wire
(iii) Aluminium (c) Wrapping food
(iv) Carbon (d) Jewellery
(v) Copper (e) Machinery
(vi) Mercury (f) Fuel

Question 9

What happens when
(a) Dilute sulphuric acid is poured on a copper plate?
(b) Iron nails are placed in copper sulphate solution?
Write word equations of the reactions involved.

Question 10

Saloni took a piece of burning charcoal and collected the gas evolved in a test tube.
(a) How will she find the nature of the gas ?
(b) Write down word equations of all the reactions taking place in this process.

Question 11

One day Reeta went to a jeweller’s shop with her mother. Her mother gave an old gold jewellery to the goldsmith to polish. Next day when they brought
the jewellery back, they found that there was a slight loss in its weight. Can you suggest a reason for the loss in weight?

(Aiye Samjhein)
Class 8 Science Chapter 4 Question Papers

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