Class 10 Science – Sample Question Paper
Chapter: Metals and Non-Metals
Set: B
Time: 1 Hour
Maximum Marks: 35
Section A – Objective Type (1 mark each)
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Which non-metal is used in making fertilisers?
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Name one soft metal that can be cut with a knife.
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Write the formula of rust.
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Which metal is the best conductor of electricity?
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Which non-metal exists in the form of a diamond?
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Name the metal that does not react with dilute HCl.
Section B – Very Short Answer (2 marks each)
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What is corrosion? Write one method to prevent it.
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Why are metals electropositive in nature?
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Write a balanced chemical equation for the reaction between iron and copper sulphate solution.
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How does sulphur differ from metals in terms of physical properties?
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Define displacement reaction. Give an example using a metal.
Section C – Short Answer (3 marks each)
- (a) What happens when a small piece of sodium is dropped in water? (b) Write the balanced chemical equation. (c) Name the gas evolved.
- (a) What is meant by the refining of metals? (b) Name and explain the method used for refining copper.
- (a) Give two chemical properties of non-metals. (b) Why do non-metals form acidic oxides? (c) Write one reaction to show this.
Section D – Long Answer (4 marks each)
- (a) Explain the steps involved in the extraction of metal from its sulphide ore. (b) Why is it necessary to convert sulphide into oxide before reduction?
- (a) List four differences between metals and non-metals. (b) Write one example for each difference.
