Match the columns Column-I Column-II (A) Valence bond theory (p) Nyholm and Gillespie (B) Octet rule (q) F. Hund & R. S Mulliken (C) Molecular orbital (r) Heitler and London theory (D) The valence shell (s) Ko􀀈􀀈ssel and Lewis electron pair repulsion theory (a) A – (p), B – (q),C – (r), D – (s) (b) A – (q), B – (r),C – (s), D – (p) (c) A – (p), B – (s),C – (q), D – (r) (d) A – (s), B – (r), C – (q), D – (p)

   

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Answer:

(c) Valence bond theory = Heitler and London

Octet rule = Kossel and Lewis

Molecular orbital theory = F. Hund and R.S. Mulliken

VSEPR theory = Nyholm and Gillespie

Molecular orbital theory ( M.O.T) Case study

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