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Chemistry
10th
grade
Revision Form4 Chapter 9 Chemical Substances for Industrial
25 questions
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- 1. Multiple Choice
Which substance is commonly used to manufacture dyes and detergents?
Sulphuric acid
Phosphoric acid
Sodium chloride
Ammonium chloride
- 2. Multiple Choice
Diagram shows the stages in Contact Process.
Name the substances P and Q.
P: Water ; Q:Concentrated sulphuric acid
P: Concentrated sulphuric acid ; Q: Water
P: Concentrated sulphuric acid ; Q: Vandadium (V) oxide
P: vanadium (V) oxide ; Q: Vandadium (V) oxide
- 3. Multiple Choice
The manufacturing of sulphuric acid involves several reactions. Which of the following equations represents the sulphuric acid reaction that use a catalyst?
- 4. Multiple Choice
Which gas is the main agent of pollution which causes acidic rain?
Ozone
Methane
Sulphur dioxide
Carbon monoxide
- 5. Multiple Choice
Acid rain causes the land to be acidic. Farmers neutralize the acidity in the soil by adding................
Lime
Sulphur
Zinc nitrate
Ammonium sulphate
- 6. Multiple Choice
Which of the following is the main usage of the product in Haber Process?
To produce pesticide
To produce paint
To produce detergent
To produce fertilizers
- 7. Multiple Choice
The chemical equation shows the reaction which occurs in Haber Process.
N2 + 3H2 --> NH3
Which of the following represents catalyst, temperature and presure in the process?
Temperature 200oC, pressure 60 atm, platinum as catalyst.
Temperature 450oC, pressure 200 atm, iron as catalyst.
Temperature 800oC, pressure 1 atm, nickel as catalyst.
Temperature 450oC, pressure 1 atm, iron as catalyst.
- 8. Multiple Choice
Pure metals are ductile and malleable. this is because...........
atoms can move freely
layers of atoms can slide easily
bonding between atoms are weak
atoms are orderly and closely packed
- 9. Multiple Choice
Diagram below shows the atomic arrangement in an alloy.
this alloy is harder than its pure metal because..........
arrangement of atoms in alloy is more orderly
vibration of atoms in alloy is more vigorous
layers of atoms in alloy is less able to slide
absence of empty spaces between atoms in alloy
- 10. Multiple Choice
diagram shows the arrangement of atoms in alloy X.
What is the name of alloy X?
Steel
Brass
Bronze
Duralumin
- 11. Multiple Choice
The body of the car shown in diagram below is made of alloy W.
What is alloy W?
Steel
Brass
Bronze
Duralumin
- 12. Multiple Choice
In order to produce a glass that more resistant to heat and chemicals, substance X is added to soda lime glass in the manufacturing process.
What is X?
Boron oxide
Lead (II) oxide
Sodium carbonate
Calcium carbonate
- 13. Multiple Choice
which of the following substances is found in a photochromic glass?
Glass and silver chloride
Plastic and ceramic
Plastic and sodium chloride
Ceramic and silver chloride
- 14. Multiple Choice
kaolin is used to made porcelain. A substance is added to kaolin to harden it.
What is the substance?
Silicone
Feldspar
Sodium oxide
Calcium carbonate
- 15. Multiple Choice
Which of the following describe the characteristics of ceramics?
I Hard
II Brittle
III High melting point
IV Good electrical insulator
I and IV only
II and III only
I, II and IV only
I, II, III and IV
- 16. Multiple Choice
Why is ceramic used for the wall of a nuclear reactor?
ceramic is very hard
ceramic is malleable
ceramic is inert towards chemical
ceramic can withstand high temperature
- 17. Multiple Choice
Which substance is a composite material?
Alloy
Glass
Fibre glass
Ceramic
- 18. Multiple Choice
Digital communication plays a very important role in modern living. Effective transmission of data, voice and images in a digital format requires a suitable material.
What is the material?
Copper
Aluminium
Fibre optic
Superconductor
- 19. Multiple Choice
What is the main purpose of using superconductors?
Devices made from superconductors are very cheap
To minimize the electrical resistance
To produce durable devices
To prevent the devices from corrosion
- 20. Multiple Choice
Diagram shows the layout of water pipe system in a house.
What are the best materials that can be used as pipes for the above purposes?
Household water supply: Polypropene ; Waste water: Ceramics ; Rain water: Polyvinylchloride
Household water supply: Lead ; Waste water: Copper ; Rain water: Polyvinylchloride
Household water supply: Fibre glass ; Waste water: Steel ; Rain water: Perspex
Household water supply: Polythene ; Waste water: Cast iron ; Rain water: Concrete
- 21. Multiple Choice
Polymer, glass, alloy and composite material are some examples of manufactured substance in industry.
Which statement is correct about these substances?
A polymer is alarge molecule formed by joining many monomers
Soda lime glass is able to withstand very high temperature
An alloy is a mixture of two or more non-metals in a fixed composition
A composite material is a substance which has low melting point
- 22. Multiple Choice
Plaster of Paris which is used to make plaster casts for supporting broken bones is made up of ...................
Calcium sulphate
Calcium silicate
Calcium phosphate
Calcium carbonate
- 23. Multiple Choice
Diagram shows the lead crystal glass.
What are the major components used in the making of lead crystal glass?
Copper (II) oxide and lead (II) oxide
Aluminium silicate and silicon dioxide
Silicon dioxide and lead (II) oxide
Iron (III) oxide and boron oxide
- 24. Multiple Choice
Ammonium sulphate is used as a chemical fertilizer. This fertilizer can be prepared in the laboratory through the reaction between ............
aqueous ammonia solution and dilute sulphuric acid
aqueous ammonia solution and dilute sulphur dioxide
ammonia gas and sulphur and oxygen
ammonia gas and sulphur trioxide
- 25. Multiple Choice
A student was dazzled by the sunlight while doing her revision as shown in diagram.
She want to change the window glass to solve this problem. The new window glass should contain substance M.
What is substance M?
Lead (II) oxide
Silver chloride
Boron oxide
Calcium carbonate
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