Font size
WorksheetsManufactured Substances in the Industry
Total questions: 20
Worksheet time: 10mins
The diagram shows the arrangement of atom in brass. Why is brass harder than pure copper?
Zinc atoms form very strong hydrogen bonds with copper atoms.
Zinc atoms prevent the layers of copper atoms from sliding over each other.
Zinc atoms prevent electrons from moving freely in the sea of electrons.
Zinc atom contributes more electrons to the sea of electrons.
The main substance in the making of all types of glass is
calcium carbonate
sodium carbonate
lead(II) oxide
silicon dioxide
The making of ceramic objects involves the heating of the object at a high temperature in a furnace. Why is this process carried out?
To remove water
To keep its shape
To break all chemical bonds
To form strong covalent bonds and ionic bonds
Industrial Revolution 4.0 (IR 4.0) will witness the Internet of Things (IOT) in almost all aspects of daily lives. All electronic devices can be connected to the Internet via computer networks. What material is most suitable to make the cables?
Soda-lime glass
Borosilicate glass
Optical cables
Fibre glass
Which alloy is correctly matched to its uses?
A
B
C
D
What type of glass is formed when calcium carbonate is heated with silicon dioxide?
Fused glass
Borosilicate glass
Lead crystal glass
Soda lime glass
The following are the characteristics of substance
needed to produce a new product in industry.
• No electrical resistance
• Function under the extremely low temperature
• Transfer information with high speed
What are the substances that can be used to produce the product?
I Ceramic
II Superconductor
III Fibre optic
IV Fibre glass
I and III only
I and IV only
II and III only
II and IV only
In order to produce a glass that is more resistant to heat and ceramics, substance X is added to soda lime glass in the manufacturing process. What is X?
Boron oxide
Lead(II) oxide
Sodium carbonate
Calcium carbonate
Ceramic is suitable to be used for making engine block because ceramic ...
is inert towards chemical substances.
is a good electrical insulator.
can withstand high temperature.
can withstand strong compression.
Which alloy is correctly matched to its uses?
Brass - Making musical instruments
Bronze - Making of surgical instruments
Stainless steel - Making of monuments
Duralumin - Making of the body of submarines
What is the effect of alloying pure gold?
Become less hard
Easier to be shaped
Easier to melt
Does not corrode
Choose the type of glass that is suitable to make the lid of the pot.
Fused silica glass
Borosilicate glass
Soda lime glass
Lead crystal glass
A student was dazzled by the sunlight while doing revision. She wants to change the window glass to solve the problem. The new window glass should contain...
Lead(II) oxide and silver chloride
Silver chloride and boron oxide
Boron oxide and lead glass
Copper(I) chloride and silver chloride
Which of the following is composite material?
Soda lime glass
Borosilicate glass
Lead crystal glass
Photochromic glass
Name the alloy that is used to make the musical instrument.
(a)
Name the substance that is suitable to make the claypot.
(a)
The National Manument was built in 1966 using alloy which is consisting of
Copper and tin
Tin and iron
Zinc and copper
Aluminium and copper
This composite material is a good building material in construction of bridges and buildings.
Name this composite material.
(a)
Name the composite material that is used to make the helmet.
(a)
The diagram below shows the orderly arrangement of atoms in a metal. The arrangement of atoms makes a metal ductile because
The forces of attraction between the metal atoms are very weak
The forces of attraction between the metal atoms are very strong
The forces of attraction between the layers of atoms are very strong
The layers of metal atoms can slide over one another when force is applied
