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JEE Main 201910 AprilMorning Shift
Exam
JEE Main
Year
2019
Date
10 April
Shift
Morning Shift
Subject
Chemistry
Chapter
p Block Elements (Group 13 & 14)

JEE Main 2019 · 10 April · Morning Shift · Chemistry · p Block Elements (Group 13 & 14)

The correct order of catenation is:

The correct order of catenation is:

Options

  1. AGe>Sn>Si>CGe > Sn > Si > C
  2. BC>Sn>Si≈GeC > Sn > Si \approx Ge
  3. CC>Si>Ge≈SnC > Si > Ge \approx Sn
  4. DSi>Sn>C>GeSi > Sn > C > Ge

Correct answer

C. C>Si>Ge≈SnC > Si > Ge \approx Sn

Step-by-step solution

Carbon atom have the tendency to link with one another through covalent bonds to form chains because of its tetra valency. This property is called catenation tendency. Carbon shows maximum catenation tendency among its group elements due to its high bond enthalpy. As we go down, the group size increases and electronegativity decreases therefore catenation tendency decreases.
So,order of catenation tendency is

C>Si>Ge≈SnC > Si > Ge \approx Sn

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