B. State whether the following statements are true or false :
1. Gold is a ferromagnetic substance.
2. Chemically magnetite is Fe²o³.
3.Artificial magnets are more powerful than natural magnets.
4. Coins are attracted to a bar magnet as they contain nickel.
5. A U-shaped permanent magnet attracts iron less strongly than a bar magnet.
C. Statements given below are incorrect. Write the correct statements.
1. Aluminium is a magnetic substance.
2. Steel is a non-magnetic substance.
3. Natural magnets are more powerful than artificial magnets
please give the full answer,that answer I will mark as brainilest
1. Gold is a ferromagnetic substance.
2. Chemically magnetite is Fe²o³.
3.Artificial magnets are more powerful than natural magnets.
4. Coins are attracted to a bar magnet as they contain nickel.
5. A U-shaped permanent magnet attracts iron less strongly than a bar magnet.
C. Statements given below are incorrect. Write the correct statements.
1. Aluminium is a magnetic substance.
2. Steel is a non-magnetic substance.
3. Natural magnets are more powerful than artificial magnets
please give the full answer,that answer I will mark as brainilest
Answers & Comments
Answer:
B
1) true
2) false
3) true
4) true
5) true
C
1) Aluminum is a magnetic substance
2) Steel is a magnetic substance
3) natural magnets are weaker than artificial magnets.
Explanation:
Verified answer
Explanation:
B) 1. false - Pure gold is not ferromagnetic. But some gold alloys can be slightly ferromagnetic due to presence of other atoms in the alloy
2. true - Ferric oxide is an iron oxide. ... It is one of the three main oxides of iron, the other two being iron(II) oxide (FeO) the rarer form, and iron(II,III) oxide (Fe3O4) which naturally as magnetite.
3. true - The bar magnet is an artificial magnet. The strength of natural magnet is limited; but the artificial magnets are very much stronger than the natural magnet.
4. false - they don't interact with magnets like many other non-magnetic materials.
5. false - A magnet is an object which attracts iron made or magnetic things.
C) 1. Aluminium is a non magnetic substance.
2. Steel is a magnetic substance.
3. Artificial magnets are more powerful than natural magnets.
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