ICSE Class 10 Metallurgy — Mock Test (2027)
Free online mock test for Metallurgy (ICSE Class 10 Chemistry) — 20 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.
What to expect: This mock test covers key concepts from the Metallurgy chapter — including application-based and competency-focused questions aligned with how ICSE actually sets the paper.
Tip: Attempt without notes first to identify gaps, then review explanations for any wrong answers. Retake after a few days for best retention.
Sample questions
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1.Name the process by which impure Aluminium is purified, the electrolyte used in this process, and provide the correct equations for the reactions taking place at the Cathode and at the Anode. Which of the following correctly identifies the process and the reactions?
- A.Process: Hoope's electrolytic refining; Electrolyte: Molten fluorides (e.g., cryolite); Cathode: Al³⁺ + 3e⁻ → Al; Anode: Al → Al³⁺ + 3e⁻
- B.Process: Hall-Héroult process; Electrolyte: Molten alumina; Cathode: Al → Al³⁺ + 3e⁻; Anode: Al³⁺ + 3e⁻ → Al
- C.Process: Electroplating; Electrolyte: Aqueous aluminium sulphate; Cathode: Al³⁺ + 3e⁻ → Al; Anode: 2H₂O → O₂ + 4H⁺ + 4e⁻
- D.Process: Distillation; Electrolyte: Molten aluminium chloride; Cathode: Al³⁺ + 3e⁻ → Al; Anode: 2Cl⁻ → Cl₂ + 2e⁻
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2.What is an alloy, and how do the properties of an alloy generally differ from those of its constituent elements?
- A.An alloy is a pure metal with enhanced properties like increased strength and corrosion resistance.
- B.An alloy is a homogeneous mixture of two or more metals or metals with non-metals, often exhibiting improved strength, corrosion resistance, or altered melting points compared to its constituents.
- C.An alloy is a chemical compound of metals that retains the exact properties of its individual components.
- D.An alloy is a heterogeneous mixture of metals that always has a lower melting point than its constituent elements.
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3.Which property of cast iron makes it unsuitable for the construction of bridges?
- A.High ductility
- B.Hardness and brittleness
- C.Low melting point
- D.High malleability
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4.Compare the physical properties of metals and non-metals. Which of the following correctly describes their properties with examples?
- A.Metals are typically solids (except mercury), lustrous, ductile, malleable, and good conductors of electricity (e.g., copper, iron), while non-metals are often dull, brittle, and poor conductors (except graphite).
- B.Metals are mostly gases or liquids, have low melting points, and are poor conductors of electricity, while non-metals are always solids, lustrous, and good conductors.
- C.Metals and non-metals both exhibit high melting points, are always solids, and conduct electricity equally well in all states.
- D.Metals are brittle and dull, while non-metals are malleable, ductile, and good conductors of electricity (e.g., sulfur, oxygen).
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5.Aluminium is said to be more reactive than iron towards oxygen (or air). Yet iron undergoes corrosion to a greater extent than aluminium. Why?
- A.Aluminium forms a thin, impervious oxide layer that prevents further corrosion, while iron rust is porous and flakes off.
- B.Iron is more reactive than aluminium, so it corrodes faster when exposed to air.
- C.Aluminium does not react with oxygen at all, while iron reacts readily to form rust.
- D.Iron forms a protective oxide layer, but aluminium oxide is unstable and wears away quickly.
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