Question

How can metals and non-metals be
classified on the basis of lustre? Give
an example.

Can coal be used to make bells? Why
or why not?

graphite is a form of carbon and a non-metal. why is it used in making electric cells?
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Answer 1

Answer:

metals have metallic lusturs .when light falls on metals they reflect .but non metals absorbe the light when light falls on them.

Explanation:

there are also some exceptions like as in the case of graphite and in case of iodine

Answer 2

i)Metals and non-metals be classified on the basis of lustre :-

• Metals - Gold have shiny surface
• Non-Metals - Coal do not have shiny surface

ii) No, coal can't used to make Bells. It is because coal is a non metal and it cannot have property of sonority which help them to make a sound when Hit hard.