Alloys and Their Properties
Chemistry ⇒ Metals and Non-metals
Alloys and Their Properties starts at 9 and continues till grade 12.
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See sample questions for grade 9
Describe how the structure of alloys differs from that of pure metals.
Describe one use of brass and explain why it is suitable for that use.
Describe the difference between an interstitial and a substitutional alloy.
Explain why alloys are less malleable than pure metals.
A manufacturer wants to make a corrosion-resistant metal for kitchen utensils. Which alloy should they choose?
(1) Brass
(2) Bronze
(3) Stainless steel
(4) Solder
A certain alloy is made by combining 70% copper and 30% zinc by mass. If a manufacturer wants to produce 500 kg of this alloy, how much zinc is required?
A scientist is designing a new alloy for use in marine environments where both strength and resistance to corrosion are important. Which two properties should the scientist prioritize when selecting elements to add to the base metal, and why?
A sample of an alloy contains 60% nickel and 40% chromium by mass. If you have 250 g of this alloy, calculate the mass of chromium present in the sample.
A manufacturer wants to make a corrosion-resistant metal for kitchen utensils. Which alloy should they choose?
(1) Brass
(2) Bronze
(3) Stainless steel
(4) Solder
Which of the following alloys is best suited for electrical soldering?
(1) Brass
(2) Solder
(3) Bronze
(4) Steel
Which of the following alloys is used for making aircraft bodies?
(1) Bronze
(2) Duralumin
(3) Solder
(4) Brass
Which of the following alloys is used for making dental fillings?
(1) Amalgam
(2) Brass
(3) Bronze
(4) Steel
Fill in the blank: Bronze is an alloy of copper and _______.
Fill in the blank: Duralumin is an alloy of aluminium, copper, magnesium, and _______.
Fill in the blank: Solder is an alloy of lead and _______.
Fill in the blank: Stainless steel is an alloy of iron, carbon, and _______.
True or False: Alloys are always harder than their component metals.
True or False: Alloys are always homogeneous mixtures.
True or False: Alloys are always mixtures and not compounds.
True or False: Alloys can have a lower melting point than their component metals.
