Question

5. You are given a hammer, a battery. a bulb wires and auch
(a) How could you use them to distinguish between samples of metals and
non-metais?
bi
Assess the usefulness of these tests to distinguishing between metails and
non-metals
rinna? Gre two examples of amphoteric oddes.​

Answer 1

a) i) First of all make a circuit using the given materials.. Then connect the metal/non-metal in the circuit..If the bulb glows, then it is a metal
ii) Hit the metal or non metal with hammer.. If the metal/non-metal turns into a sheet showing malleability, it is a metal and vice versa

b)These tests are not useful as graphite inspite of being a non metal will glow the bulb and sodium being a metal will not show malleability
Examples of amphoteric oxides:-Al2O3, ZnO

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