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Aluminium chloride exists as dimer, A l subscript 2 end subscript C l subscript 6 end subscript in solid state as well as in solution of non-polar solvents such as benzene. When dissolved in water, it gives

  1. left square bracket A l left parenthesis O H right parenthesis subscript 6 end subscript right square bracket to the power of 3 minus end exponent plus 3 H C l    
  2. left square bracket A l left parenthesis H subscript 2 end subscript O right parenthesis subscript 6 end subscript right square bracket to the power of 3 plus end exponent plus 3 C l to the power of minus end exponent    
  3. A l to the power of 3 plus end exponent plus 3 C l to the power of minus end exponent    
  4. A l subscript 2 end subscript O subscript 3 end subscript plus 6 H C l    

The correct answer is: A l subscript 2 end subscript O subscript 3 end subscript plus 6 H C l


    A l subscript 2 end subscript C l subscript 6 end subscript plus 12 H subscript 2 end subscript O2 left square bracket A l left parenthesis H subscript 2 end subscript O right parenthesis subscript 6 end subscript right square bracket to the power of 3 plus end exponent plus 6 C l to the power of minus end exponent

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