Causes of rusting practice exercise 2

Question 1

Why does painting an iron gate prevent rusting?

Question 2

A metal window frame was exposed to frequent splashes of rainwater and air. What is the most likely result over time? (1 mark)

Question 3

A metal window frame was exposed to frequent splashes of rainwater and air. What is the most likely result over time? (1 mark)

Question 4

Look at the diagram showing two iron nails: one in boiled water sealed with oil, and one in open tap water. Which nail will rust and why?(Diagram: Test Tube A – Nail in boiled water with oil layer; Test Tube B – Nail in tap water open to air)

Question 5

Study the diagram below showing two iron nails: one in boiled water sealed with oil, and one in open tap water. Which nail will rust and why? (1 mark)

Question 6

Study the diagram below showing two iron nails: one in boiled water sealed with oil, and one in open tap water. Which nail will rust and why? (1 mark)

Question 7

The diagram below shows an iron rod left outside in the rain. What is the likely result after several days?(Diagram: Iron rod standing outdoors, exposed to rain and air)

Question 8

The diagram below shows an iron rod left outside in the rain. What is the likely result after several days? (1 mark)

Question 9

The diagram below shows an iron rod left outside in the rain. What is the likely result after several days? (1 mark)

Question 10

The table below shows three nails placed in different conditions. Which nail will rust the most? NailWater PresentAir PresentSalt Present AYesNoNo BYesYesYes CNoYesNo

Question 11

The table below shows three nails placed in different conditions. Which nail will rust the most? (1 mark) Nail Water Present Air Present Salt Present A Yes No No B Yes Yes Yes C No Yes No

Question 12

The table below shows three nails placed in different conditions. Which nail will rust the most? (1 mark) Nail Water Present Air Present Salt Present A Yes No No B Yes Yes Yes C No Yes No

Question 13

What are the two main conditions necessary for rusting to occur?

Question 14

What are the two main conditions necessary for rusting to occur? (1 mark)

Question 15

What are the two main conditions necessary for rusting to occur? (1 mark)

Question 16

What product is formed when iron reacts with oxygen and water?

Question 17

What product is formed when iron reacts with oxygen and water? (1 mark)

Question 18

What product is formed when iron reacts with oxygen and water? (1 mark)

Question 19

Which of the following best explains why iron rusts faster in coastal regions?

Question 20

Which of the following best explains why iron rusts faster in coastal regions? (1 mark)

Question 21

Which of the following best explains why iron rusts faster in coastal regions? (1 mark)

Question 22

Which of the following chemical processes best describes rusting?

Question 23

Which of the following chemical processes best describes rusting? (1 mark)

Question 24

Which of the following chemical processes best describes rusting? (1 mark)

Question 25

Which of the following is a sign that rusting has occurred on iron?

Question 26

Which of the following is a sign that rusting has occurred on iron? (1 mark)

Question 27

Which of the following is a sign that rusting has occurred on iron? (1 mark)

Question 28

Which of these environments will cause iron to rust the fastest?

Question 29

Which of these environments will cause iron to rust the fastest? (1 mark)

Question 30

Which of these environments will cause iron to rust the fastest? (1 mark)

Quiz Questions (30 questions)