JEE Main & Advanced Chemistry Hydrogen & Its Compounds Question Bank Hydrogen peroxide

  • question_answer The volume of oxygen liberated from 15 ml of 20 volume \[{{H}_{2}}{{O}_{2}}\] is [MH CET 2003]

    A) 250 ml

    B) 300 ml

    C) 150 ml

    D) 200 ml

    Correct Answer: B

    Solution :

    Quantity of \[{{H}_{2}}{{O}_{2}}=15\,ml\] and volume of \[{{H}_{2}}{{O}_{2}}=20\] We know that 20 volume of \[{{H}_{2}}{{O}_{2}}\] means 1 litre of this solution will give 20 litre of oxygen at N.T.P. Since, oxygen liberated from 1000 ml (1 litre) of \[{{H}_{2}}{{O}_{2}}=20\,litre\], therefore oxygen liberate from 15 ml of \[{{H}_{2}}{{O}_{2}}\] \[=\frac{20}{1000}\times 15=0.3\,litre=300\,ml\]


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