2. Sample Papers
  3. 7th Class
  4. Science

7th Class Science Sample Paper Science Olympiad Model Test Paper-2

  • question_answer
    Look at the following chemical equation and choose the correct option. \[Ca{{(OH)}_{2}}\xrightarrow{{}}CaO+{{H}_{2}}O\]

    A) It is a double displacement reaction

    B) No new substances are formed in the reaction

    C) It is a decomposition reaction

    D) When calcium oxide is heated calcium hydroxide and water are produced

    E) None of these

    Correct Answer: C

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