alleryAmong NaCl, HCl, H₂O — order of bond polarity:
ANaCl is ionic, HCl/H₂O are polar covalent
BHCl > H₂O > NaCl
CNaCl > HCl > H₂O
DNaCl > H₂O > HCl
Answer & Solution
Correct answer: A. NaCl is ionic, HCl/H₂O are polar covalent
NaCl has electronegativity difference (~2.1) so large it's IONIC, not just polar covalent.
HCl (Δχ ~ 0.9) and H₂O (Δχ ~ 1.4) are polar covalent. The clean answer is D.
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