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Hydrated copper sulphate on heating chan...

Hydrated copper sulphate on heating changes to

A

Blue

B

Black

C

White

D

Yellowish

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The colour of hydrated copper sulphate is……………and that of anhydrous copper sulphate is………………..

Why is hydrated copper sulphate blue while anhydrous copper sulphate white?

Write the chemical formula of hydrated copper sulphate and anhydrous copper sulphate. Give an activity to illustrate how these two are interconvertible

Crystals copper sulphate are heated in a test tube for some time. What is the colour of copper sulphate crystals (i) before heating and (ii) after heating.

formula of copper sulphate

From the methods (or techniques) of distillation, filtration, fractional distillation, chromatography, crystallisation, select and write down the technique you would use to separate : Hydrated copper (II) sulphate or blue vitriol from its aqueous solution.

Crystals of copper sulphate are heated in a test tube for some time. What is the source of liquid droplets seen on the inner upper side of the test tube during the heating process?

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MODERN PUBLICATION-ACID, BASES AND SALTS-EXERCISE
  1. A piece of zinc metal is dropped in dilute solution of hydrochloric ac...

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  2. Name the two main consituents of baking powder.

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  3. Name the two main consituents of baking powder.

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  4. Tooth enamel is one of the hardest substances in our body. How does it...

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  5. What is the meant by water by crystallisation in a substance? How woul...

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  6. Complete the following reactions: NaCl+CO2+NH3+H2Orarr……………+…………

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  7. Compelte the following reactions: CaSO4. 2H2O rarr

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  8. Compelte the following reactions: CaCO3+H2SO4(dil)rarr

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  9. What is universal indicator?

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  10. Solution A gives pink colour when a drop of phenopthalein indicator is...

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  11. Name one salt whose solution has pH more than 7 and one salt whose has...

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  12. Hydrated copper sulphate on heating changes to

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  13. An aqueous solutons turns red litmus solutoin blue. Excess addition of...

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  14. When a few drops of universal indicator were added to a dilute solutio...

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  15. Dilute hydrochloric acid is added to sodium carbonate. It is observed ...

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  16. Which gas is produced when Al metals reacts wth NaOH solution?

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  17. What will be the colour produced when a drop of pehnolphthalein is add...

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  18. What will be the colour produced when a drop of pehnolphthalein is add...

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  19. What will be the colour produced when a drop of pehnolphthalein is add...

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  20. What will be the colour produced when a drop of pehnolphthalein is add...

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