1. common name of zinc ore is-----------
Haematite
calamine
Feldspar
Cryolite
2. common name of Aluminum ore is-----------
Corundum
Siderite
Magnetite
Haematite
3. common name of copper ore is-----------
Feldspar
Cuprite
Corundum
Cryolite
4. common name of iron ore is-----------
calamine
Haematite
Feldspar
Cryolite
5. Which of the following is not an ore of zinc?
Calamine
zinc pyrites
Zincite
Zinc blende
6. Which of the following is not an ore of zinc?
zinc pyrites
Calamine
Zincite
Zinc blende
7. Distinguish between properties of metals and nonmetals.
Metals tend to be softer and Nonmetals tend to be hard
Metals tend to be hard and Nonmetals tend to be softer
Non-metals are good conductors of heat while metals are bad conductors of heat
Metals are brittle and Non- metals are malleable
8. Distinguish between properties of metals and nonmetals with reference to Malleability .
Metals are not malleable and Non-metal are malleable
Metals are malleable and Non-metal are ductile.
Metals can withstand hammering and can be made into thin sheets known as foils, while non-metals are generally brittle and non-malleable
Metals are ductile and Non-Metals are malleable
9. Distinguish between properties of metals and nonmetals with reference to density.
Non-metals are very heavy while Metals are light
Non-metals have high density while Metals have low density
Metals have high density while Non-metals have low density
Metals tend to be hard and Nonmetals tend to be softer
10. Distinguish between properties of metals and nonmetals with reference to lustre.
Metals tend to be hard and Nonmetals tend to be softer
Metals usually have a high lustre and Nonmetals lack lustre
Non-metals usually have a high lustre and metals lack lustre
Non-metals are good conductors of heat while metals are bad conductors of heat
11. Distinguish between properties of metals and nonmetals with reference to Conduction of heat and electricity
Non-metals are very heavy while Metals are light
metals are good conductors of heat while non-metals are bad conductors of heat
Metals usually have a high lustre and Nonmetals lack lustre
Non-metals are good conductors of heat while metals are bad conductors of heat
12. Distinguish between properties of metals and nonmetals with reference to Melting and boiling point.
melting points of non-metals are high as compared to metals
boiling points of non-metals are high as compared to metals
Boiling and melting points of non-metals are high as compared to metals
Boiling and melting points of metals are high as compared to non metals
13. State the use of Copper in daily life.
production of utensils
make wires
utilised in manufacturing and construction fields mainly in form of steel
used for parts of aircraft
14. State the use of Iron in daily life.
It is used extensively for musical instruments such as horns and bells.
make wires
utilised in manufacturing and construction fields mainly in form of steel
used to make mirrors
15. State the use of Aluminum in daily life.
used to make mirrors
used for parts of aircraft
production of utensils
manufacture of storage batteries
16. State the use of Magnesium in daily life.
used to make mirrors
manufacture of storage batteries
manufacturing like creating roofing materials
used for parts of aircraft
17. State the use of Zinc in daily life.
used to make mirrors
manufacture of storage batteries
used for parts of aircraft
It is used extensively for musical instruments such as horns and bells.
18. State the use of Lead in daily life.
used to make mirrors
It is used extensively for musical instruments such as horns and bells.
sed in older thermometers
manufacture of storage batteries.
19. State the use of Silver in daily life.
to make mirrors
It is used extensively for musical instruments such as horns and bells.
utilised in manufacturing and construction fields mainly in form of steel
used in older thermometers
20. State the use of Brass in daily life.
utilised in manufacturing and construction fields mainly in form of steel
production of utensils
used in older thermometers,
used in applications where corrosion resistance and low friction are required, such as locks
21. State the use of Mercury in daily life.
utilised in manufacturing and construction fields mainly in form of steel
used for parts of aircraft
manufacture of storage batteries
It is used in older thermometers
22. Identify two groups of metals.
alkali and alkaline
conductors and non-conductors
ferrous and non-ferrous
metals and non-metals
23. State two properties of ferrous metals.
High corrosion resistance and Non-magnetic
Colourful and Non-magnetic
Easy to fabricate and High corrosion resistance
Recyclable and Silverish color.
24. State two properties of non ferrous metals.
Recyclable and Silverish color.
Durable with Great tensile strength and Recyclable
Generally magnetic and Very Low resistance to corrosion
Colorful and Non-magnetic
25. Give one property of non – metals.
shiny when cut
strong but malleable
excellent conductors of electricity and heat
are brittle
26. Give one property of metals.
bad conductors of heat and electricity
can be easily bent or shaped
are non-lustrous
are brittle
27. Non metals are?
natural materials that produce heat or electricity and that are structurally brittle
are opaque, lustrous elements that are bad conductors of heat and electricity
are opaque, lustrous elements that are good conductors of heat and electricity
natural materials that do not produce heat or electricity and that are structurally brittle
28. Metals are?
are opaque, lustrous elements that are good conductors of heat and electricity
are opaque,non- lustrous elements that are good conductors of heat and electricity
natural materials that produce heat or electricity and that are structurally brittle
natural materials that do not produce heat or electricity and that are structurally brittle
29. Identify two career opportunities of use of metals and non – metals.
ICT and Welder
Welder and Boilermaker.
product manager and ICT
system programmer and Boilermaker
30. Which one is not a use of non-metals?
biomedical applications
Used for the preparation of sulphuric acid
Used to make gunpowder
Used as an insecticide or a fumigant
31. Which one is not a use of metals?
to construct houses and bridges
Used for the preparation of sulphuric acid
making jewellery
biomedical applications
32. What property of copper makes it suitable for electrical wiring?
Low Conductivity
High density
High Conductivity
Low density
33. Name a metal which is the best conductor of heat.
Silver
Lead
brass
titanium
34. Name a metal which is the poor conductor of heat.
Copper
Aluminum
silver
bismuth
35. Name the metals which are most ductile.
mercury and Gold
Gold and platinum
zinc and platinum
zinc and mercury
36. Name the metals which are not ductile.
sodium and potassium
Gold and platinum
potassium and platinum
Gold and sodium
37. Name a metal which exist as a liquid at room temperature.
Argon
Silver
Mercury
Sodium
38. The poorest conductor of heat among metals is?
Lead
Nitrogen
Mercury
Lead
39. What are natural materials?
those that are increasingly difficult to source
Those materials that are found in nature and have been made by human beings
is an available resource for which there is an unlimited quantity
Those materials that are found in nature and have not been made by human beings
40. Name three synthetic materials.
Rayon and Nylon and Polyester.
cotton, linen and Polyester.
wool, silk and hemp
cotton, linen and hemp
41. ___ is used to galvanise iron and steel to prevent ___.
Iron metal,rusting
Copper metal,rusting
Hammer ,rusting
Zinc metal,rusting
42. Which of the following is a non-metallic material commonly used for making kitchen utensils?
Iron
Plastic
Aluminium
Copper
Explanation:
Plastic is a non-metallic material that is commonly used for making kitchen utensils because it is lightweight and durable.
43. Which of the following is a non-metallic material that is a good conductor of electricity?
Wood
Rubber
Glass
Graphite
Explanation:
Graphite is a non-metallic material that is a good conductor of electricity due to its unique molecular structure.
44. Which of the following non-metallic materials is transparent and commonly used for making windows?
Wood
Ceramic
Glass
Concrete
Explanation:
Glass is a non-metallic material that is transparent and commonly used for making windows because of its clarity and ability to let light through.
45. Which of the following non-metallic materials is known for its flexibility and is used for making rubber bands?
Plastic
Ceramic
Wood
Rubber
Explanation:
Rubber is a non-metallic material known for its flexibility and is commonly used for making rubber bands and other elastic products.
46. Which of the following non-metallic materials is lightweight and commonly used for making packaging materials?
Paper
Aluminium
Brick
Concrete
Explanation:
Paper is a non-metallic material that is lightweight and commonly used for making packaging materials due to its versatility and ease of recycling.
47. Which of the following is a non-metallic material commonly used in making glass windows?
Silica
Plastic
Iron
Gold
Explanation:
Silica is a non-metallic material that is the main component of glass. It is commonly used in making glass windows.
48. Which of the following non-metallic materials is known for its high conductivity of electricity?
Silicon
Wood
Rubber
Copper
Explanation:
Silicon is a non-metallic material that exhibits high conductivity of electricity. It is commonly used in making semiconductors.
49. Which non-metallic material is commonly used in making electrical insulators?
Plastic
Ceramic
Silver
Aluminum
Explanation:
Ceramic is a non-metallic material that is known for its excellent electrical insulating properties. It is commonly used in making insulators.
50. Which of the following is a non-metallic material commonly used in making tires?
Steel
Carbon
Copper
Rubber
Explanation:
Rubber is a non-metallic material that is commonly used in making tires due to its flexibility and durability.
51. Which non-metallic material is commonly used in making clothing?
Plastic
Gold
Cotton
Glass
Explanation:
Cotton is a non-metallic material that is commonly used in making clothing due to its softness and breathability.
52. Which non-metallic material is commonly used in making cooking utensils due to its non-reactive properties?
Teflon
Plastic
Copper
Stainless steel
Explanation:
Teflon is a non-metallic material known for its non-reactive properties, making it ideal for use in making cooking utensils.
53. Which of the following is a non-metallic material commonly used in making paper?
Cotton
Plastic
Aluminum
Wood
Explanation:
Wood is a non-metallic material commonly used in making paper due to its fibrous nature.
54. Which non-metallic material is commonly used in making toothpaste for its abrasive properties?
Salt
Plastic
Sugar
Silica
Explanation:
Silica is a non-metallic material commonly used in making toothpaste for its abrasive properties that help in cleaning teeth.
55. Which of the following non-metallic materials is commonly used in making solar panels?
Aluminum
Ceramic
Plastic
Silicon
Explanation:
Silicon is a non-metallic material commonly used in making solar panels due to its semiconductor properties.
56. Which non-metallic material is commonly used in making bottles and containers for storing beverages?
Plastic
Ceramic
Steel
Glass
Explanation:
Glass is a non-metallic material commonly used in making bottles and containers for storing beverages due to its transparency and non-reactive properties.