2. Questions Bank
  3. JEE Main & Advanced
  4. Chemistry
  5. Some Basic Concepts of Chemistry / रसायन की कुछ मूलभूत अवधारणाएँ

JEE Main & Advanced Chemistry Some Basic Concepts of Chemistry / रसायन की कुछ मूलभूत अवधारणाएँ Question Bank Self Evaluation Test - Some Basic Concepts of Chemistry

  • question_answer
    Assuming fully decomposed, the volume of \[C{{O}_{2}}\] released at STP on heating 9.85 g of \[BaC{{O}_{3}}\] (Atomic mass, Ba = 137) will be

    A) 1.12L   

    B) 2.24L

    C) 4.06L               

    D) 0.84L

    Correct Answer: A

    Solution :

    [a] \[BaC{{O}_{3}}\xrightarrow{{}}BaO+C{{O}_{2}}\] 192 g of \[BaC{{O}_{3}}\] gives 1 mol of \[C{{O}_{2}}=22.4L\] 9.85 g  of \[BaC{{O}_{3}}\] will give 0.05 mol of \[C{{O}_{2}}\] which is equal to 1.12 litre.


You need to login to perform this action.
You will be redirected in 3 sec spinner