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Which of the following aqueous molal solution have highest freezing point

  • Option 1)

    Urea

  • Option 2)

    Barium chloride

  • Option 3)

    Potassium bromide

  • Option 4)

    Aluminium sulphate

 

Answers (2)

best_answer

As we learned 

 

Depression in freezing point -

-

 

 KBr=K^{+}+Br^{-}=2\: ions

BaCl_{2}=Ba^{2+}+2Cl^{-}=3\: ions

Al_{2}(SO_{4})_{3}=2Al^{3+}+3SOl_{4}^{2-}=5\: ions

\therefore urea is not ionise hence it is shows highest freezing point.

 


Option 1)

Urea

Option 2)

Barium chloride

Option 3)

Potassium bromide

Option 4)

Aluminium sulphate

Posted by

prateek

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