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JEE Main201912 Jan 2019Evening ShiftChemistryChemical Bonding and Molecular StructureActual

The element that shows greater ability to form pπ - pπ multiple bonds is:

Options

  1. AS n
  2. BC
  3. CS i
  4. DG e

Correct answer

B. C

Step-by-step solution

C forms most stable pπ - pπ bonds because it has high bond dissociation energy, more electronegativity, high ionization energy and vacant d - orbital is unavailable. While others have vacant orbital and low bond dissociation enthalpy and low ionisation enthalpy

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