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What changes in the colour of iron nails...

What changes in the colour of iron nails and copper sulphate solution do you observe after keeping the iron nails dipped in copper sulphate solution for about 30 minutes?

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Iron nails get covered with a red-brown coating of copepr metal, the blue colour of copper sulphate solution fades gradually
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LAKHMIR SINGH & MANJIT KAUR-METALS AND NON-METALS-Exercise
  1. State whether the followign statement is true of false: Non-metals r...

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  2. From amongst the metals sodium, calcium, aluminium, copper and magnesi...

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  3. What changes in the colour of iron nails and copper sulphate solution ...

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  4. What is aqua-regia? Name two special metals which are insoluble in com...

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  5. Give the names and formulae of (a) two acidic oxides, and (b) two basi...

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  6. What name is given to those metal oxides which show basic as well as a...

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  7. Name two metals which form amphoteric oxides.

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  8. A copper coin is kept immersed in a solution of silver nitrate for som...

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  9. Which property of copper and aluminium makes them suitable: (a). For...

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  10. Write the name and formulae of (a) a metal hydride, ad (b) a non-metal...

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  11. Name the metal which has been placed: (a). At the bottom of the reac...

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  12. Which of the two metals is more reactive: copper or silver?

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  13. (a). Name one metal which is stored in kerosene oil. (b). Name one n...

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  14. Write equation for the reaction of (a). Sodium with oxygen (b) mag...

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  15. Name two metals which are used: (a). For making electric wires (b)...

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  16. Which metal foil is used for packing some of the medicine tables.?

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  17. Name the non-metal which is used: (a). To convert vegetable oil into...

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  18. Name one property which is characteristic of (a) metals, and (b) non-m...

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  19. What is meant by "brittleness"? Which type of elements usually show br...

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  20. What will happen if a strip of zinc is immersed in a solution of coppe...

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