JEE Main & Advanced Chemistry Some Basic Concepts of Chemistry / रसायन की कुछ मूलभूत अवधारणाएँ Question Bank Topic Test - Some Basic Concepts of Chemistry (8-5-21)

  • question_answer
    What will be the volume of \[C{{O}_{2}}\]at NTP obtained on heating 10 grams of (90% pure) limestone

    A) 22.4 litre

    B) 2.016 litre

    C) 2.24 litre

    D) 20.16 litre

    Correct Answer: B

    Solution :

    [b] \[\underset{10gm}{\mathop{CaC{{O}_{3}}}}\,\to CaO+C{{O}_{2}}\]
                90% pure 9gm \[=\frac{9}{100}\]mole
                \[CaC{{O}_{3}}\equiv C{{O}_{2}}=0.09\]mole
                            At NTP Vol.\[C{{O}_{2}}=0.09\times 22.4=2.016L\].


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