1. Tardigrade
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  3. Chemistry
  4. The tendency for catenation is much higher for C than for Si.

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Q. The tendency for catenation is much higher for $C$ than for $Si$.

IIT JEEIIT JEE 1993The p-Block Elements

Solution:

Due to smaller size of carbon than silicon, $C - C$ bond is stronger than $Si - Si$ bond, hence former is more likely to extend than later.