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Multiple Bond Formation

Catenation i....

Question

Catenation i.e. linking of similar atoms depends on size and electronic configuration of atoms. The tendency of catenation in Group 14 elements follows the order:

A

C > S i > G e > S n

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B

C >> S i > G e \approx S n

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C

S i > C > S n > G e

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D

G e > S n > S i > C

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Solution

The correct option is C $C >> S i > G e \approx S n$
Catenation is the binding of an element to itself through covalent bonds to form chain or ring molecules.
In Group 14, down the group, the size increases and electronegativity decreases, and, thereby, tendency to show catenation decreases. The order of catenation is C > > Si > Ge ~ Sn. Lead does not show catenation.

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