10th Class Science Chemical Reactions and Equations Question Bank Chemical Reactions and Acids, Bases and Salts

  • question_answer
    Which one of the chemical reactions is unbalanced?

    A) \[Ca{{(OH)}_{2}}+C{{O}_{2}}\xrightarrow{{}}CaCO3+{{H}_{2}}O\]

    B) \[{{H}_{2}}+{{O}_{2}}\xrightarrow{{}}{{H}_{2}}O\]

    C) \[2{{H}_{2}}+{{O}_{2}}\xrightarrow{{}}2{{H}_{2}}O\]

    D) All the above

    E) None of these

    Correct Answer: B


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