Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) Physical and Chemical Properties of Group 14th Elements Single Correct MCQ
Published on: August 13, 2026

Carbon forms a large number of compounds because it has:

A
fixed valency
B
contains non-metallic nature
C
high ionization potential
D
contains property of catenation

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The correct answer is:
D

Carbon atoms have the tendency to link with one another through covalent bonds to form chains and rings. This property is called catenation. This is because C–C bonds are very strong. Down the group the size increases tendency to show catenation decreases. The order of catenation is C > > Si > Ge ≈ Sn.

Bond Bond enthalpy (kJ mol –1 )

C—C 348

Si––Si 297

Ge—Ge 260

Sn—Sn 240

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