10th Class Science Chemical Reactions and Equations Question Bank Chemical Reactions and Equation

  • question_answer
    Which of the following is a decomposition reaction?

    A) \[NaOH+HCl\to NaCl+{{H}_{2}}O\]

    B) \[Zn+2HCl\to ZnC{{l}_{2}}+{{H}_{2}}\]

    C) \[2KCl{{O}_{3}}\to 2KCl+3{{O}_{2}}\]

    D) \[{{H}_{2}}+{{I}_{2}}\to 2HI\]

    Correct Answer: C

    Solution :

    In the given options \[KCl{{O}_{3}}\] undergoes decomposition to form \[KCl\] and \[{{O}_{2}}\].


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