Metals and Non-metals
15 solved questions from Class 10 Science, each with the full working. Tap any question to see the step-by-step solution.
- 1 Which of the following is a characteristic physical property of metals? easy MCQ 1 mark Physical properties of metals
- 2 Which metal is known for forming a thin, adherent oxide layer that protects it from further corrosion, and is therefore widely used to make stainless steel? hard MCQ 2 marks Passivation of metals
- 3 Describe the process of extracting iron from its ore in a blast furnace. Include the role of coke, limestone and the chemical reactions involved. medium 3 marks Extraction of iron
- 4 A rectangular bar of an unknown metal has length 40.0 cm, breadth 2.0 cm, height 1.5 cm and mass 540 g. Calculate its density and comment whether the metal could be copper (density = 8.96 g/cm³). medium 2 marks Density calculation of metals
- 5 State any two important uses of aluminium in daily life. easy 1 mark Uses of aluminium
- 6 Which metal from the following list will NOT displace hydrogen from dilute hydrochloric acid? hard MCQ 5 marks Reactivity series of metals
- 7 Which of the following is a characteristic physical property of metals? easy MCQ 1 mark Physical properties of metals
- 8 A rectangular block of an unknown metal has dimensions length = 5.0 cm, breadth = 3.0 cm, height = 2.0 cm and mass = 210 g. Calculate its density and state whether the metal could be aluminium (density of aluminium = 2.70 g cm⁻³). medium 3 marks Density calculation and identification of metal
- 9 What is the primary topic or theoretical principle explored in 'Metals and Non-metals' (Class 10 SCIENCE)? medium MCQ Chapter Core Principle
- 10 Which key mechanism or analytical rule is highlighted in 'Metals and Non-metals'? medium MCQ Key Analytical Mechanism
- 11 Which metal forms a protective passive oxide layer that prevents further corrosion and is therefore widely used to make stainless steel? easy MCQ 1 mark Corrosion resistance of chromium
- 12 Briefly explain how zinc protects iron when used as a galvanised coating. medium 3 marks Sacrificial anode protection
- 13 Which metal cannot displace hydrogen from dilute hydrochloric acid? medium MCQ 4 marks Displacement reactions with acids
- 14 Which of the following metals cannot displace hydrogen from dilute hydrochloric acid? medium MCQ 2 marks Displacement reaction series
- 15 A rectangular metal bar has length 7.0,cm, breadth 3.5,cm, height 2.5,cm and mass 140 g. Calculate its density in g/cm^3 and determine if this density is close to that of pure aluminium (2.70, g/cm^3). easy 2 marks Density of a metal