NEET Sample Paper NEET Sample Test Paper-50

  • question_answer 80) Calculate the mass of anhydrous HCl in 10 ml of concentrated HCl \[\left( d=1.2\text{ }g/ml \right)\] solution having \[37%\] HCl by weight.

    A) 4.44 g              

    B) 4.44 mg

    C) \[4.44\,\,\times \,\,{{10}^{-3}}\,g\]        

    D) \[0.444\text{ }\mu g\]

    Correct Answer: A

    Solution :

    \[\because \] 37 gm HCl in 100 gm solution volume of solution \[=\,\,\frac{100}{1.2}\,\,=\,\,83.33\,\,ml\] \[\therefore \] 10 ml solution contains \[=\,\,\frac{37}{83.33}\,\,\times \,10\,ml\] \[=\text{ }4.44\,gm\]

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