Chemistry
Grade-8
Easy
Question
Select the correct count for covalent bonds present in the following allotropes.
- Diamond-3, Graphite-3, Fullerene- 3
- Diamond-4, Graphite-3, Fullerene- 3
- Diamond-4, Graphite-3, Fullerene- 4
- Diamond-4, Graphite-4, Fullerene- 3
Hint:
A covalent bond is a chemical bond in which electrons are shared to form electron pairs between atoms.
The correct answer is: Diamond-4, Graphite-3, Fullerene- 3
The correct option is b)Diamond-4, Graphite-3, Fullerene- 3.
In diamond, each carbon shares electrons with four other carbon atoms resulting in the formation of four covalent single bonds.
Graphite has a huge covalent structure in which each carbon atom forms three covalent bonds with other carbon atoms.
In fullerenes the carbon atoms are organized in a plane (hollow molecule) so that a neutral carbon atom has two bonds and the connected charged carbons have opposite charges.
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