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प्रश्न
State any five physical properties of non-metals.
लघु उत्तर
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उत्तर
- Non-metals are brittle (break easily). They are neither malleable nor ductile.
- Non-metals are bad conductors of heat and electricity (except graphite, which is a good conductor of electricity).
- Non-metals are non-lustrous (dull) and cannot be polished (except iodine, which is a lustrous non-metal).
- Non-metals may be solid, liquid or gases at room temperature.
- Non-metals are not strong or tough.
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या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 3: Metals and Non-metals - Exercise 1 [पृष्ठ १६७]
