9th Class Science Sample Paper Science Sample Paper-5

  • question_answer
    Identify the combination reaction.

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

    B) \[8Fe+{{S}_{8}}\to 8FeS\]

    C) \[Cu+2AgN{{O}_{3}}\to Cu{{(N{{O}_{3}})}_{2}}+2Ag\]

    D) \[{{H}_{2}}S+C{{l}_{2}}\to 2HCl+S\]

    E) None of these

    Correct Answer: B


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