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NEET Chemistry Solutions / विलयन Question Bank Self Evaluation Test - Solutions

  • question_answer
    If the elevation in boiling point of a solution of 10 g of solute (mol. wt.= 100) in 100g of water is \[\Delta {{T}_{b}}\] the ebullioscopic constant of water is

    A) 10                                

    B) \[10\Delta {{T}_{b}}\]

    C) \[\Delta {{T}_{b}}\]                              

    D) \[\frac{\Delta {{T}_{b}}}{10}\]

    Correct Answer: C

    Solution :

    [c] \[\Delta {{T}_{b}}=\frac{{{K}_{b}}\times w\times 1000}{M\times W};\] \[\therefore {{K}_{b}}=\frac{\Delta {{T}_{b}}\times 100\times 100}{10\times 1000}=\Delta {{T}_{b}}\]


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