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NEET Sample Paper NEET Sample Test Paper-68

  • question_answer
    What volume of oxygen gas \[\left( {{O}_{2}} \right)\] measured at \[0{}^\circ C\] and 1 atm is needed to bum completely 1 L of propane gas \[\left( {{C}_{3}}{{H}_{8}} \right)\] measured under the same conditions?

    A) 6 L                              

    B) 5 L

    C) 10 L                 

    D) 7 L

    Correct Answer: B

    Solution :

    \[{{C}_{3}}{{H}_{8}}\,\,+\,\,5{{O}_{2}}\,\,\xrightarrow{{}}\,\,3C{{O}_{2}}+4{{H}_{2}}O\] 1 mol or 22.4 L \[{{C}_{3}}{{H}_{8}}\] at STP required 5 mole or \[5\,\,\times \,\,22.4\text{ }{{O}_{2}}\] at STP.               


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