MEDIUM
8th CBSE
IMPORTANT
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Can you store lemon pickle in an aluminium utensil? Explain.

Important Questions on Materials: Metals and Non-Metals

MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 4 - Materials: Metals and Non-Metals>Short Answer Type Questions>Q 59
Why should the foodstuffs like orange juice, pickles, chutney and curd not be kept in iron or aluminium containers?
MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 4 - Materials: Metals and Non-Metals>Short Answer Type Questions>Q 60
Give a reason for the following:
Sodium and potassium are stored in kerosene.
MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 4 - Materials: Metals and Non-Metals>Short Answer Type Questions>Q 60
Give a reason for the following:
Copper cannot displace zinc from its salt solution (zinc sulphate solution).
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 4 - Materials: Metals and Non-Metals>Short Answer Type Questions>Q 61
Why are metals used for making bells?
MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 4 - Materials: Metals and Non-Metals>Short Answer Type Questions>Q 61
Why is phosphorus kept underwater?
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 4 - Materials: Metals and Non-Metals>Short Answer Type Questions>Q 62

Which of the following can be beaten into thin sheets? Why?

(a) Zinc (b) Phosphorus (c) Sulphur (d) Oxygen

MEDIUM
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 4 - Materials: Metals and Non-Metals>Short Answer Type Questions>Q 63

Match the substances given in column A with their uses given in column B:

A B
(i) Gold (a) Thermometers
(ii) Iron (b) Electric wires
(iii) Aluminium (c) Wrapping food
(iv) Carbon (d) Jewellery
(v) Copper (e) Machinery
(vi) Mercury (f) Fuel
EASY
8th CBSE
IMPORTANT
Lakhmir Singh's SCIENCE FOR CLASS 8>Chapter 4 - Materials: Metals and Non-Metals>Short Answer Type Questions>Q 64
Give one use of the following metal:
Iron