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Q. Correct order of catenation property, is:

JIPMERJIPMER 1995

Solution:

Catenation property is the property of some elements (non-metallic) of forming a long chain of atoms of same element e.g., sulphur exist as $ {{S}_{8}} $ molecule, P exists as $ {{P}_{4}} $ molecule. Catenation property is highest for carbon. It can form a chain of seven thousands of atoms. The catenation power decrease with increase in metallic character. Hence correct order is: $ C>>Si>Ge\approx Sn>>Pb $