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Materials: Metals and Non-Metals — Class 8 CBSE Science MCQs with Solutions
Free Class 8 CBSE Science Materials: Metals and Non-Metals MCQs with step-by-step solutions. Practise online on Prepizo — no login needed.
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Sample questions with solutions
Q1 — easy
Which metal is a liquid at room temperature?
A. Sodium
B. Mercury ✓ Correct
C. Zinc
D. Lead
Solution: Mercury is liquid at room temperature.
Q2 — easy
Metals generally are good conductors of:
A. heat and electricity ✓ Correct
B. sound only
C. light only
D. nothing
Solution: Free electrons make metals good conductors.
Q3 — easy
The property by which metals can be drawn into wires is:
A. malleability
B. ductility ✓ Correct
C. sonority
D. lustre
Solution: Ductility allows wire-drawing.
Q4 — hard
Which non-metal is lustrous, an exception to the usual rule?
A. Sulphur
B. Iodine ✓ Correct
C. Carbon (coal)
D. Phosphorus
Solution: Iodine has a shiny appearance.
Q5 — hard
A metal X displaces Y from its salt solution but not Z. The order of reactivity is:
A. Z > X > Y ✓ Correct
B. X > Y > Z
C. Y > X > Z
D. Z > Y > X
Solution: X beats Y but loses to Z.
Q6 — hard
Non-metal oxides dissolved in water generally form:
A. bases
B. acids ✓ Correct
C. salts only
D. neutral solutions always
Solution: For example CO₂ forms carbonic acid.
Q7 — medium
Which non-metal is essential for burning (supports combustion)?
A. Nitrogen
B. Oxygen ✓ Correct
C. Helium
D. Argon
Solution: Oxygen supports combustion.
Q8 — medium
Why is aluminium used to make cooking utensils?
A. It is radioactive
B. It conducts heat well and resists corrosion ✓ Correct
C. It is very heavy
D. It dissolves in water
Solution: Good conduction plus a protective oxide layer.
Q9 — medium
Which of these displaces copper from copper sulphate solution?
A. Gold
B. Silver
C. Iron ✓ Correct
D. Platinum
Solution: Iron is more reactive than copper.