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Four test tubed marked I,II,III and IV w...

Four test tubed marked I,II,III and IV were taken 20 ml of `Al_2(SO_4)_3` solution in water was poured in each of the test tube I, an iron nails was put in test tube II, copper turnings were put in test tube III and a clean aluminium strip was placed in test tube IV. No change was observed in any four any in the test tubes. the correct inference drawn is

A

copper is more reactive than aluminium

B

zinc is more reactive than aluminium

C

Zinc is more reactive copper

D

Zinc, iron and copper are less reactive, than aluminium.

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MODERN PUBLICATION-METALS AND NON-METALS-EXERCISE
  1. If iron nails are added in zinc sulphate solution, the possible observ...

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  2. Which of the following statements are correct: Aluminium can displace ...

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  3. Four test tubed marked I,II,III and IV were taken 20 ml of Al2(SO4)3 s...

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  4. Why does calcium metal after reacting with water starts floating on i...

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  5. Write chemical equations for the following: Lead carbonate is calcined...

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  6. Write chemical equations for the following: Chromium oxide is heated w...

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  7. Write chemical equations for the rection on Zn granules with dil H2SO4...

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  8. Write chemical equations for the rection on Zn granules with Sodium h...

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  9. Write chemical equations for the extraction of copper from its sulpide...

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  10. When metals are treated with mineral acids, hydrogen gas is liberated ...

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  11. A metal that exists as a liquid at room temperature is obtained by hea...

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  12. Metals undergo corrosion with water and oxygen present in air. Write t...

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  13. Compelte the reaction: NaBr+Cl2rarr

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  14. Complete the reaction: Fe(s)+dil H2SO4rarr

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  15. Name two metals which readily burn in air and two metals which do not ...

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  16. Name one metal which reacts with cold water

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  17. Name a metal which is extracted by reduction with aluminium powder.

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  18. What is the nature of metal oxides?

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  19. Why do non-metals not conduct electricity?

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  20. Why do shop keepers apply oil on tools made of iron while storing them...

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