MEDIUM
8th Chhattisgarh Board
IMPORTANT
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Sodium is more reactive than magnesium.

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Important Questions on Metals and Non-Metals

MEDIUM
8th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VIII>Chapter 5 - Metals and Non-Metals>QUESTIONS FOR PRACTICE>Q 4
Stainless steel is an alloy of iron, nickel, carbon and chromium.
MEDIUM
8th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VIII>Chapter 5 - Metals and Non-Metals>QUESTIONS FOR PRACTICE>Q 4
Non-metals react with oxygen to form alkaline oxides (basic oxide).
MEDIUM
8th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VIII>Chapter 5 - Metals and Non-Metals>QUESTIONS FOR PRACTICE>Q 4
Rusting is an example of corrosion of metals.
HARD
8th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VIII>Chapter 5 - Metals and Non-Metals>QUESTIONS FOR PRACTICE>Q 5
Differentiate metals and non-metals on the basis of physical and chemical properties. Write three differences between each.
MEDIUM
8th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VIII>Chapter 5 - Metals and Non-Metals>QUESTIONS FOR PRACTICE>Q 5
Why are gold and silver used for making ornaments?
HARD
8th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VIII>Chapter 5 - Metals and Non-Metals>QUESTIONS FOR PRACTICE>Q 5
What do you understand by reactivity series?
HARD
8th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VIII>Chapter 5 - Metals and Non-Metals>QUESTIONS FOR PRACTICE>Q 5
How much carat is pure gold? Why is pure gold not used for making ornaments?
HARD
8th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VIII>Chapter 5 - Metals and Non-Metals>QUESTIONS FOR PRACTICE>Q 5
What are alloys? Give names of any four alloys and write their constituents and uses.