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Most Important Selected Qs for JEE AdvancedChemistryp Block Elements (Group 13 & 14)

Select the correct statement(s) about AlCl ₃

Options

  1. AIts anhydrous form is an ionic compound
  2. BIt exists as a dimer in non polar solvents like benzene
  3. CThe dimeric structure disappears when dissolved in water
  4. DIt shows back bonding of lone pairs of chlorine to the vacant p-orbital of aluminium

Correct answer

C. The dimeric structure disappears when dissolved in water

Step-by-step solution

Answer (B, C) Anhydrous AlCl ₃ is covalent and it does not show back bonding.

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