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Chemistry
3. Metals and Non-metals
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Q17 of 79 Page 3

Food cans are coated with tin and not with zinc because:

Food cans are coated with tin and not with zinc because zinc is more reactive than tin. Hence, being more reactive, zinc may react with acidic food and form toxic products which may be harmful for our health.

More from this chapter

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15

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

16

You are given a hammer, a battery, a bulb, wires and a switch.

(a) How could you use them to distinguish between samples of metals and non-metals?


(b) Assess the usefulness of metals based on properties shown by these tests.

18

What would you observe when zinc is added to a solution of iron (II) sulphate? Write the chemical reaction that takes place.

19

Which gas is produced when dilute hydrochloric acid is added to a reactive metal? Write the chemical reaction when iron reacts with dilute sulphuric acid.

Questions · 79
3. Metals and Non-metals
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