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NTA Abhyas JEE Main2020ChemistryChemical Bonding and Molecular StructurePractice

Which of the following is a positive overlap that leads to bonding? (I) (II) (III) (IV)

Options

  1. AI and II
  2. BII and III
  3. CIII and IV
  4. DI and IV

Correct answer

B. II and III

Step-by-step solution

Concept: Overlapping of only same phase creates bonding. (I) There is no case of bonding as a positive phase cannot simultaneously make bond with other orbital's positive as well as negative phase (II) This creates bonding of p and d orbital. (III) This creates bonding of two 'p' orbitals. (IV) This is the case of anti-bonding of two 'd' orbitals.

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