JEE Main Chemistry question

Diamond is hard because [VITEEE 2008]

(A)All the four valence electrons are bonded to each carbon atom by covalent bondsCorrect
(B)It is a giant molecule
(C)It is made up of carbon atoms
(D)It cannot be burnt

Answer: (A)

Solution

In diamond, every carbon atom is hybridised and uses all four valence electrons to form four strong bonds to four other carbons in a rigid 3-D lattice, giving its extreme hardness. Being a "giant molecule" or "made up of carbon" alone does

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Question ID VK-138311