Question:

The element that does NOT show catenation is :

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Catenation in group 14 decreases down the group because the M-M bond strength falls.
Updated On: Nov 5, 2026
  • Ge
  • Si
  • Sn
  • Pb
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The Correct Option is D

Solution and Explanation

Catenation depends on the strength of the M-M bond. Bond enthalpies (kJ/mol): C-C 348 > Si-Si 297 > Ge-Ge 260 > Sn-Sn 240.
Catenation order: C >> Si > Ge ≈ Sn >> Pb.
Lead does not show catenation because the Pb-Pb bond is too weak; Ge, Si and Sn all show some catenation.
Answer: (4) Pb
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