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J & K CET Engineering J and K - CET Engineering Solved Paper-2013

  • question_answer
    van't Hoff factor for \[\text{Ca(N}{{\text{O}}_{\text{3}}}{{\text{)}}_{\text{2}}}\]is

    A)  1                     

    B)  2

    C)  3                     

    D)  4

    Correct Answer: C

    Solution :

     \[\text{Ca(N}{{\text{O}}_{\text{3}}}{{\text{)}}_{\text{2}}}\]having van't Hoff factor 3. Because, it dissociates into 3 ions as \[Ca{{(N{{O}_{3}})}_{2}}\xrightarrow{{}}C{{a}^{2+}}+2NO_{3}^{-},\] So, \[i=3\]


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