Chemistry - CHEMICAL BONDING Question with Solution | TestHub

Dichromate has terminal Cr-O bonds distinct from bridge Cr-O bonds, so A qualifies. In hypophosphate, resonance makes the P-O bonds within its PO₃ units equivalent in the intended model. H₂NO₃⁺ has OH N-O environments distinct from its remaining terminal N-O environment, so C qualifies. H₂PO(OH) has P=O and P-OH bonds of different lengths, so D qualifies. Answer A,C,D.