Only one non-metal carbon which is very hard?

graphite

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diamond

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silver

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lead

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Solution

The correct option is B diamond
Only one non-metal (carbon in the form of diamond) is very hard.

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Similar questions

Name a non-metal which is very hard.

Name:

(a) two metals which are liquid at room temperature,

(b) metal which do not corrode easily

(d) a non-metal which is lustrous,

(e) a non-metal which conducts electricity,

(f) a metal which is brittle,

(g) two elements which are monoatomic,

(h) two metallic oxides which are acidic,

(i) two metallic oxides which are amphoteric,

(j) two metallic which react with cold water,

(k) the compound responsible for green deposit on the surface of copper,

(l) a non-metal which can form a positive ion,

(m) a non-metal which shows reducing property,

(n) a metal whose oxide is reduced only by carbon.

Question 3 (a)
Phosphorus is a very ___ non-metal.

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