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Which metal is mainly used in preparatio...

Which metal is mainly used in preparation of machinery ?

A

`1`. Silver

B

`2`. Gold

C

`3`. Copper

D

`4`.Iron

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VGS PUBLICATION-BRILLIANT-METALS AND NON-METALS-EXERCISE
  1. Among which is does not react with air?

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  2. The non-metal added in gun powder is .

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  3. Which metal is mainly used in preparation of machinery ?

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  4. Which of these metals is main component in all the fuels ?

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  5. Why are coils of electric toasters and electric irons made of an alloy...

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  6. Assertion (A): Mercury is not a metal., Reason (R): Mercury does not s...

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  7. Veni : All metals are shines., Sana : All shines are metals.

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  8. Assertion (A): Bases are prepared with oxides of metals., Reason (R) :...

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  9. Find the correct one.

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  10. What will happen if you use wooden bell in your school ?

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  11. Predict a metal, which is a metal but does not have sonority.

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  12. How can you say plastic does not have property of malleability ?

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  13. There is substance ‘X’. After burning, it is.changed into powder. If w...

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  14. What happens if we add copper dust into Ferrous sulphate solution ?

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  15. Guess the reason why does Ferrous (Iron) does not displace Zinc from Z...

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  16. Which gas is liberated when, acids react with metals ? Give one exampl...

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  17. generally do not react with water.

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  18. metal get green coating when exposed to air.

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  19. Among which is does not react with air?

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  20. How do you prove that iron is more reactive than copper?

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