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NEET Chemistry Analytical Chemistry Question Bank Self Evaluation Test - Analytical Chemistry

  • question_answer
    0.75 g platinic chloride of a mono- acidic base on ignition gives 0.245 g platinum. The molecular weight of the base is

    A) 75.0                 

    B) 93.5  

    C) 100                  

    D) 80.0

    Correct Answer: B

    Solution :

    [b] Apply the formula M.wt   \[=\frac{Acidity}{2}\left( \frac{wt\text{ }of\text{ }Pt\text{ }salt\times 195}{wtofPt}-410 \right)\] \[\therefore \,M.wt=\frac{1}{2}\left( \frac{0.75\times 195}{0.245}-410 \right)=93.5\]


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