Question

1 what are allotrope give atleast four difference between graphite and diamond

Answer 1

Allotropes :Different forms of an element having same chemical properties but different physical properties are called Allotropes.

• Diamond:

1. Diamond has a three dimensional network structure.
2. It is the hardest natural substance known.
3. It has high density and melting point.
4. It has high refractive index.
5. It does'nt  show thermal and electrical conductivity.

• Graphite:

1. Graphite has a 2-dimensional sheet like structure.
2. It is soft and greasy.
3. It is opaque.
4. It has low density.
5. It is a good conductor of heat and electricity.

hope it helps.............

Answer 2

Allotrope: the various physical forms in which an element can exist are called the allotropes of that element.

Diamond

It is a colourless transparent substance having extraordinary brilliance

Does not conduct electricity

A very hard substance

Has a density of 3.51

Graphite

A greyish black substance

A good conductor of electricity

Soft material with a slippery feel

Has a density of 2.25

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