Question

mark √or× .

1.metal are generally good conductor of heat and electricity.

2. sodium can be stored under water.

3. iron coating protect zinc.

4. sulphur is a metal

5. metal react with oxygen to form metal oxide.

6. helium is a noble gas because it is very reactive.

7. brass is a metal element.

8. Steel contain iron and carbon.

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Answer 1

1)√

3)×

4)×

5)√

6)×

7)√

8)√

2)×

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