Metals and non‑metals Quiz - ICSE Class 7 Science

Free practice quiz: Metals and non‑metals (ICSE Class 7 Science). 52 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This ICSE Class 7 Science practice quiz has 52 multiple-choice questions on Metals and non‑metals, and 52 of them come with an explanation. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.

Sample questions

1. Which of the following non-metals is essential for respiration in most living organisms?

   1. Nitrogen
   2. Oxygen
   3. Carbon
   4. Sulfur
   Show answer

   Answer: B. Oxygen

   Oxygen is a vital non-metal that is used by most living organisms, including humans, for cellular respiration to produce energy.

2. Which non-metal is a solid at room temperature and is known for its allotropes, such as diamond and graphite?

   1. Sulfur
   2. Phosphorus
   3. Carbon
   4. Silicon
   Show answer

   Answer: C. Carbon

   Carbon (C) is a solid non-metal at room temperature. It exhibits allotropy, meaning it can exist in different forms in the same physical state. Diamond and graphite are famous allotropes of carbon.

3. Which non-metal is essential for the formation of bones and teeth in humans and animals?

   1. Sulfur
   2. Phosphorus
   3. Calcium
   4. Magnesium
   Show answer

   Answer: B. Phosphorus

   Phosphorus is a non-metal that, along with calcium, is a major component of bones and teeth, contributing to their strength and structure.

4. Which property of metals is essential for their use in making electrical wires?

   1. Malleability
   2. Sonorousness
   3. Conductivity
   4. Brittleness
   Show answer

   Answer: C. Conductivity

   Electrical conductivity is the ability of a material to allow electric current to flow through it. Metals like copper and aluminum are excellent conductors of electricity.

5. Which metal is very resistant to corrosion and is often used to coat other metals to protect them from rusting, such as in galvanized iron?

   1. Copper
   2. Iron
   3. Zinc
   4. Aluminum
   Show answer

   Answer: C. Zinc

   Zinc (Zn) is a metal that forms a protective oxide layer on its surface, making it highly resistant to corrosion. This property is utilized in galvanization.

More questions in this quiz

Answers and explanations are in the full quiz.

1. Which metal is known for its excellent conductivity of both heat and electricity, making it ideal for electrical wiring?
2. What property allows metals to be drawn into thin wires?
3. Which of the following is a characteristic physical property of most non-metals?
4. When a metal reacts with oxygen, what type of oxide is usually formed?
5. Which non-metal is a liquid at room temperature and pressure?
6. The process of coating iron with a thin layer of zinc to prevent rusting is called:
7. Which of the following non-metals is used in the production of fertilizers and is also a component of DNA?
8. Which property of metals allows them to be hammered into thin sheets?
9. Which metal is so reactive that it must be stored under kerosene to prevent reaction with air and moisture?
10. When a non-metal reacts with oxygen, what type of oxide is usually formed?
11. Which metal is used in thermometers because it remains liquid over a wide range of temperatures and expands uniformly?
12. What is the term used to describe a metal that can react with both acids and bases?
13. Which non-metal is a component of all organic compounds and is crucial for life?
14. Which property of metals allows them to produce a ringing sound when struck?
15. Which metal is known for its resistance to corrosion and is used in stainless steel?
16. Which of the following non-metals is a highly reactive gas used in disinfectants and as a bleaching agent?
17. The reaction of a metal with an acid typically produces hydrogen gas and a:
18. Which property of metals is responsible for their shiny appearance?
19. Which of the following metals is used in the manufacture of lightweight aircraft components due to its low density and high strength?
20. Which non-metal is a vital component of carbohydrates and is responsible for the energy found in food?
21. The property that allows metals to be hammered into thin sheets without breaking is called:
22. Which of the following non-metals is a noble gas and is known for its inertness, making it useful in light bulbs?
23. Which metal is extremely soft, highly reactive, and can be easily cut with a knife?
24. When iron rusts, it reacts with oxygen and water to form hydrated iron(III) oxide. This process is a form of:
25. Which non-metal is essential for the formation of proteins and is also found in amino acids?
26. Which metal is used in the production of coins and jewelry due to its beauty and resistance to tarnish?
27. Which non-metal exists in several allotropic forms, including red and white phosphorus, which have different reactivity levels?
28. The reaction of a metal with water can produce hydrogen gas and a metal hydroxide. Which of the following metals reacts vigorously with cold water?
29. Which non-metal is used in tanning leather and in the vulcanization of rubber?
30. Which of the following metals is a liquid at room temperature?
31. When a non-metal oxide dissolves in water, it forms an acid. For example, carbon dioxide dissolves in water to form:
32. Which property describes the tendency of metals to lose electrons and form positively charged ions (cations)?
33. Which non-metal is a vital component of DNA, RNA, and ATP (adenosine triphosphate)?
34. Which metal is used in cooking utensils and is a good conductor of heat, but can react with acids?
35. Which of the following non-metals is a gas at room temperature and is the most abundant gas in the Earth's atmosphere?
36. The process of converting an ore into a pure metal is called:
37. Which non-metal is a crucial component of carbohydrates, fats, and proteins, forming the basic structure of organic molecules?
38. What is the common name for the process where iron reacts with oxygen in the presence of moisture to form a reddish-brown flaky substance?
39. Which non-metal is used in disinfectants and water purification due to its oxidizing properties?
40. Which property allows metals to be drawn into thin wires?
41. Which metal is highly valued for its resistance to corrosion and is used in jewelry and as a catalyst in chemical reactions?
42. Which non-metal is an essential component of all proteins and is found in amino acids?
43. Which of the following is NOT a characteristic property of metals?
44. When a metal oxide reacts with an acid, it typically forms a salt and:
45. Which non-metal is used in matches and fireworks due to its flammability?
46. Which metal is commonly used in electrical conductors and plumbing pipes due to its excellent conductivity and resistance to corrosion?
47. The property of a metal that allows it to be deformed under tension, such as being stretched into a wire, is called:

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