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A green coating is observed on a metal p...

A green coating is observed on a metal pipe. The pipe may be made with

A

Iron

B

Aluminium

C

Copper

D

Silver

Text Solution

Verified by Experts

The correct Answer is:
C
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VGS PUBLICATION-BRILLIANT-CHEMICAL REACTIONS AND EQUATIONS-OBJECTIVE TYPE QUESTIONS
  1. Potato chips are spoiled in a chips packet, predict the reason

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  2. Iron grill was not rusted, predict the proper reason

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  3. A green coating is observed on a metal pipe. The pipe may be made with

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  4. Brown coloured metal powder is changed into black colour on heating. T...

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  5. An yellow coloured powder changed into gray colour on exposing in the ...

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  6. Gas in a cylinder was put off the burning stick with a pop sound. The ...

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  7. The balanced chemical equation, among the following, is ……………….

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  8. Which one is necessary to test for a hydrogen gas ?

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  9. Barium sulphate is formed when these are added in beaker

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  10. Which gas is produced when zinc granules react with Hydrochloric acid ...

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  11. Heating of which of the following compound gives acidic and basic oxid...

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  12. What do you notice when water added to quick lime?

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  13. What substance will be formed when Na(2)SO(4) and BaCl(2) are added in...

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  14. What do you notice when a burning matchstick put in a hydrogen ?

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  15. What do you notice when AgCl is exposed to sunlight ?

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  16. Which one is obsorved while a magnesium ribbon burning ?

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  17. What do you observe when lead nitrate powder is heated in a boiling tu...

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  18. What will you observe when Pb(NO(3))(2) is added to KI in a test tube?

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  19. What will you notice when Na(2)SO(4) is added to BaCl(2) in a test tub...

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  20. When copper powder is heated 'CuO' would be formed. What type of colou...

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