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Which of the following will have the largest intermolecular attractiveness? Please explain. H-F, P-N, C-Si, O-O

Which of the following will have the largest intermolecular attractiveness? Please explain.

H-F, P-N, C-Si, O-O

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Answer #1

H- F is having a strongest intermilecular attractiveness, Hydrogen is having very less electronegetivity n Fluorine is a strongest electronegative element, the bond formed between these is a very strong in nature and the bond is ionic, strong attractive forces present, H- bond present in between H.....F . So among the all of them H- F is having strong and lengthy intermolecular ( hydrogen bond) attractiveness.

O-O is having pi- bonding between them due to sharing of 2 pi- electrons (electrons of 2 P- 2P orbitals). This pi- bond is not lengthy ( shorter than single bond) and stronger than that of H-F.

P- N also having covalent bonding between 3P - 2P orbitals nt lengthy , due to orbital mismatch also nt strong in nature ( mismatch orbitals will not form strong hybrid orbitals).

Same is applicable to C- Si bond.

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