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Explain why: Sulphur exhibits tendenc...

Explain why:
Sulphur exhibits tendency for catenation but oxygen does not.

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Sulphur has greater catenation property than oxygen because S-S bond energy is more than O-O bond energy. This is because, oxygen atom is small in size and the lone pair of electrons in oxygen repel bond pair electrons of O-O to a greater extent than sulphur, in turn making the O-O bond weak. As a result, oxygen exists as a diatomic molecule and sulphur forms polyatomic molecule that is sulphur shows catenation.
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