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Chemistry CBSE Live product
Class 10 (2026-27)
Metals and non-metals
Physical properties of metals and non-metals
5.
Properties of non-metals
Question:
3
m.
Answer the following questions:
1.
What are the different physical properties of non-metals?
i.
Why non-metals are mostly used as insulators?
Non-metals are very hard which does not allow electric currect to pass through it
Non-metals contain free electrons to conduct electricity
Non-metals lack have free electrons to conduct electricity
Non-metals are tightly packed, hence electrons cannot move
Example:
Mercury
Copper
Silver
Phosphorus
ii.
Which of the following is true about properties of diamond and graphite?
Diamond is soft natural substance, while graphite is hard and slippery
Diamond is poor conductor of electricity, while graphite is a good conductor of electricity
Diamond is good conductor of electricity, while graphite is a poor conductor of electricity
Diamond is hard natural substance, while graphite is hardest than diamond
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