What is meant by the term 'corrosion'?

Important Questions on Metals and Non-Metals

MEDIUM

8th CBSE

IMPORTANT

New Science Ahead 8>Chapter 4 - Metals and Non-Metals>Exercises>Q D

Silver is more likely to tarnish near a petroleum refinery than in a place far away from it. Explain why.

EASY

8th CBSE

IMPORTANT

New Science Ahead 8>Chapter 4 - Metals and Non-Metals>Exercises>Q D

List three physical properties of non-metals.

MEDIUM

8th CBSE

IMPORTANT

New Science Ahead 8>Chapter 4 - Metals and Non-Metals>Exercises>Q D

Do non-metals liberate hydrogen gas from dilute acids?

MEDIUM

8th CBSE

IMPORTANT

New Science Ahead 8>Chapter 4 - Metals and Non-Metals>Exercises>Q D

Classify the following elements into metals and non-metals:
hydrogen, gold, carbon, nitrogen, zinc, oxygen, sodium, magnesium, phosphorus, sulphur, silver, neon, mercury, chlorine

MEDIUM

8th CBSE

IMPORTANT

New Science Ahead 8>Chapter 4 - Metals and Non-Metals>Exercises>Q E

Discuss the main physical and chemical properties of metals.

MEDIUM

8th CBSE

IMPORTANT

New Science Ahead 8>Chapter 4 - Metals and Non-Metals>Exercises>Q E

What is the activity series of metals? How is it useful?

MEDIUM

8th CBSE

IMPORTANT

New Science Ahead 8>Chapter 4 - Metals and Non-Metals>Exercises>Q E

Which of the following undergo chemical reactions? Describe the reactions and write their equation.
Iron and copper sulphate

MEDIUM

8th CBSE

IMPORTANT

New Science Ahead 8>Chapter 4 - Metals and Non-Metals>Exercises>Q E

Which of the following undergo chemical reactions? Describe the reactions and write their equation.
Copper and ferrous sulphate