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6th Class Science Changes Around us Question Bank Changes around us

  • question_answer
    Nitrogen reacts with hydrogen under high temperature and pressure and forms ammonia. Which type of change is undergone in the given example?

    A)  A chemical change

    B)         A physical change

    C)         An exothermic reaction

    D)         A natural change

    Correct Answer: A

    Solution :

    It has undergone a chemical change. A new substance (ammonia gas) having different properties is formed. It is an endothermic change requiring high temperature and pressure.


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