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AP EAMCET202124 Aug 2021Morning ShiftChemistryChemical Bonding and Molecular StructureActual

Which is the most covalent?

Options

  1. AAlCl ₃
  2. BAlI ₃
  3. CMgI ₂
  4. DNaI

Correct answer

B. AlI ₃

Step-by-step solution

AlI ₃ is the most covalent compound. According to Fajan's rule, covalent character small cation or large anion or positive charge Since, lesser the electronegativity difference more covalent is aluminium halide. Hence, the most covalent halide is AlI ₃ .

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