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  4. Which of the following is a positive overlap that leads to bonding? (I) <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/c-iyxkpzpwi9bq.png /> (II) <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/c-iyxkpzpwmsvu.png /> (III) <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/c-iyxkpzpw28q3.png /> (IV) <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/c-iyxkpzpwpf7f.png />

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Q. Which of the following is a positive overlap that leads to bonding?

(I) Question

(II) Question

(III) Question

(IV) Question

NTA AbhyasNTA Abhyas 2020Chemical Bonding and Molecular Structure

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.