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12th Class Chemistry Solutions / विलयन Question Bank MCQs - Solutions

  • question_answer
    A solution is obtained by mixing 200 g of 30% and 300 g of 20% solution by weight. What is the percentage of solute in the final solution?

    A) 50%

    B) 28%

    C) 64%

    D) 24%

    Correct Answer: D

    Solution :

    Solute in 200 g of 30% solution = 60 g Solute in 300 g of 20% solution = 60 g Total grams of solute=120g Total grams of solution = 200+300=500g % of solute in the final solution \[=\frac{120}{500}\times 100=\text{ }24%\]


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