An amalgam is an alloy which contains mercury as one of the component in it. Sodium-mercury amalgam, silver-mercury amalgam, etc. are examples.

Compare the following property of brass and copper: Corrosion resistance.

Brass is an alloy of copper and zinc. That is, the process of alloying make a substance corrosion resistant to a large extent whereas copper is a pure metal which can undergo corrosion due to porolonged exposure in air eventhough it is corrosion resistant. Therefore, we can say that brass is more corrosion resistant than copper.

Compare the following property of brass and copper: Hardness and strength

An alloy is more hard and has a greater strength than a pure metal. That is, brass is an alloy of copper and zinc whereas copper is a pure metal. Therefore, the hardness and strength is more in brass.

Compare the following property of brass and copper: Conductivity

An alloy has less conductivity than a pure metal. Brass is an alloy of copper and zinc and copper is a pure metal. Therefore, copper has more conductivity than brass.

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All in One - ICSE Chemistry>Chapter 7 - Metallurgy>CHECK POINT 04

Saleha Pervez and Shikha Goel Solutions for Chapter: Metallurgy, Exercise 4: CHECK POINT 04

Author:Saleha Pervez & Shikha Goel

Saleha Pervez Chemistry Solutions for Exercise - Saleha Pervez and Shikha Goel Solutions for Chapter: Metallurgy, Exercise 4: CHECK POINT 04

Attempt the practice questions on Chapter 7: Metallurgy, Exercise 4: CHECK POINT 04 with hints and solutions to strengthen your understanding. All in One - ICSE Chemistry solutions are prepared by Experienced Embibe Experts.