NEET Chemistry Redox Reactions / रेडॉक्स अभिक्रियाएँ Question Bank Self Evaluation Test - Redox Reactions

  • question_answer
    In which of the following reactions, there is no change in valency?

    A) \[4KCl{{O}_{3}}\to 3KCl{{O}_{4}}+KCl\]

    B) \[S{{O}_{2}}+2{{H}_{2}}\text{S}\to 2{{H}_{2}}O+3S\]

    C) \[Ba{{O}_{2}}+{{H}_{2}}S{{O}_{4}}\to BaS{{O}_{4}}+{{H}_{2}}{{O}_{2}}\]

    D) \[2BaO+{{O}_{2}}\to 2Ba{{O}_{2}}\]

    Correct Answer: C

    Solution :

    [c] In \[Ba{{O}_{2}}+{{H}_{2}}S{{O}_{4}}\to BaS{{O}_{4}}+{{H}_{2}}{{O}_{2}}\] all atoms are present in the same O.S. in reactants and products.


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