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 10
A student is given two samples: one of pure iron and one of stainless steel. Which sample is more likely to rust when exposed to moisture?
A wire made of pure copper and a wire made of brass are tested for electrical conductivity. Which wire will conduct electricity better?
Brass is an alloy of which two metals?
Describe how the arrangement of atoms in an alloy differs from that in a pure metal.
Explain why alloys are less malleable than pure metals.
A student is given two samples: one of pure iron and one of stainless steel. Which sample is more likely to rust when exposed to moisture?
A wire made of pure copper and a wire made of brass are tested for electrical conductivity. Which wire will conduct electricity better?
Consider the following scenario: A bridge is constructed using an alloy that contains iron, chromium, and nickel. After several years, the bridge shows minimal signs of rusting. Explain which property of the alloy is responsible for this and name the alloy.
Which alloy is commonly used in making aircraft bodies? (1) Brass (2) Bronze (3) Duralumin (4) Solder
Which alloy is used for making coins and medals? (1) Brass (2) Bronze (3) Solder (4) Steel
Which of the following alloys contains mercury? (1) Bronze (2) Amalgam (3) Steel (4) Brass
Which of the following alloys is used in making resistance wires for heating elements? (1) Nichrome (2) Bronze (3) Brass (4) Duralumin
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 _______.
Fill in the blank: The alloy used for making the filament of electric bulbs is _______.
Alloys are always made by mixing metals in their molten state. True or False?
Alloys are generally harder than pure metals. True or False?
Bronze is harder than pure copper. True or False?
State whether the following statement is true or false: Alloys are always made from two or more metals only.
