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Samples of four metals A, B, C and D wer...

Samples of four metals A, B, C and D were taken and added to the following solution one by one. The results obtained have been tabulated as follows.

Use the Table above to answer the following questions about metals A, B, C and D.
(i) Which is the most reactive metal?
(ii) What would you observe if B is added to a solution of Copper (II) sulphate?
(iii) Arrange the metals A, B, C and D in the order of decreasing reactivity.

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LAKHMIR SINGH & MANJIT KAUR-METALS AND NON-METALS-Exercise
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  3. Samples of four metals A, B, C and D were taken and added to the follo...

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  4. Which gas is produced when dilute hydrochloric acid is added to a reac...

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  5. What would you observe when zinc is added to a solution of iron (II) s...

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  6. (i) Write the electron-dot structures for sodium, oxygen and magnesium...

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  7. Why do ionic compounds have high melting points?

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  8. Define the following terms. (i) Mineral (ii) Ore (iii) Gangue

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  9. Name two metals which are found in nature in the free state.

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  10. What chemical process is used for obtaining a metal from its oxide?

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  11. Metallic oxides of zinc, magnesium and copper were heated with the fol...

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  12. Which metals do not corrode easily?

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  13. What are alloys?

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  14. Which of the following pairs will give displacement reactions?

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  15. Which of the following methods is suitable for preventing an iron fryi...

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  16. An element reacts with oxygen to give a compound with a high melting p...

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  17. Food cans are coated with tin and not with zinc because

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  18. You are given a hammer, a battery, a bulb, wires and a switch. (a) H...

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  19. What are amphoteric oxides? Give two examples of amphoteric oxides.

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  20. Name two metals which will displace hydrogen from dilute acids, and tw...

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