ALLOY AND ITS IMPORTANCE

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CHEMISTRY FORM 4 CHAPTER 8 ALLOY

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NUR SYAFIYAH BINTI ISHAK .

Malasia

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ALLOY AND ITS IMPORTANCEVersión en línea CHEMISTRY FORM 4 CHAPTER 8 ALLOY por NUR SYAFIYAH BINTI ISHAK . 1 Which of the following best defines an alloy? a A pure metal with impurities b A mixture of two or more elements, with at least one being a metal c A compound formed between two metals d A non-metallic mixture 2 Which of the following is an example of an alloy? a Iron b Copper c Brass d Aluminium 3 Brass is an alloy made from which two metals? a Copper and zinc b Copper and tin c Iron and carbon d Iron and chromium 4 Which alloy is used to make coins and medals? a Steel b Bronze c Stainless steel d Duralumin 5 What is the main reason for making alloys? a To reduce metal cost b To make metals lighter c To improve the properties of metals d To make pure metals more reactive 6 Why is pure iron not suitable for making car bodies? a It is too heavy b It is too expensive c It rusts easily d It is a poor conductor 7 Which of the following pairs is correctly matched? a Brass – copper and tin b Steel - iron and copper c Bronze – copper and zinc d Stainless steel – iron, chromium, and nickel 8 The atoms in an alloy are arranged: a Randomly with distorted layers b In regular layers that slide easily c In a fixed pattern with equal spacing d Only as non-metal atoms 9 Why are alloys usually stronger than pure metals? a Alloy atoms are larger and lighter b Alloy atoms distort the layers, making it harder to slide c Alloy atoms are smaller and softer d Alloys have lower melting points 10 Which of the following is not an advantage of using alloys? a Stronger than pure metals b More resistant to corrosion c Always cheaper than pure metals d Harder than pure metals

ALLOY AND ITS IMPORTANCEVersión en línea

CHEMISTRY FORM 4 CHAPTER 8 ALLOY

por NUR SYAFIYAH BINTI ISHAK .

Which of the following best defines an alloy?

A pure metal with impurities

A mixture of two or more elements, with at least one being a metal

A compound formed between two metals

A non-metallic mixture

Which of the following is an example of an alloy?

Iron

Copper

Brass

Aluminium

Brass is an alloy made from which two metals?

Copper and zinc

Copper and tin

Iron and carbon

Iron and chromium

Which alloy is used to make coins and medals?

Steel

Bronze

Stainless steel

Duralumin

What is the main reason for making alloys?

To reduce metal cost

To make metals lighter

To improve the properties of metals

To make pure metals more reactive

Why is pure iron not suitable for making car bodies?

It is too heavy

It is too expensive

It rusts easily

It is a poor conductor

Which of the following pairs is correctly matched?

Brass – copper and tin

Steel - iron and copper

Bronze – copper and zinc

Stainless steel – iron, chromium, and nickel

The atoms in an alloy are arranged:

Randomly with distorted layers

In regular layers that slide easily

In a fixed pattern with equal spacing

Only as non-metal atoms

Why are alloys usually stronger than pure metals?

Alloy atoms are larger and lighter

Alloy atoms distort the layers, making it harder to slide

Alloy atoms are smaller and softer

Alloys have lower melting points

Which of the following is not an advantage of using alloys?

Stronger than pure metals

More resistant to corrosion

Always cheaper than pure metals

Harder than pure metals

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ALLOY AND ITS IMPORTANCE

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ALLOY AND ITS IMPORTANCEVersión en línea

por NUR SYAFIYAH BINTI ISHAK .

Which of the following best defines an alloy?

Which of the following is an example of an alloy?

Brass is an alloy made from which two metals?

Which alloy is used to make coins and medals?

What is the main reason for making alloys?

Why is pure iron not suitable for making car bodies?

Which of the following pairs is correctly matched?

The atoms in an alloy are arranged:

Why are alloys usually stronger than pure metals?

Which of the following is not an advantage of using alloys?