8th Class Science Materials : Metals and Non-metals Question Bank Metals and Non-metals

  • question_answer
    Substance X reacts with dilute HCI violently, V reacts slowly while Z does not react at all. X, Y and Z could be respectively

    A)  Cu, Al, Fe                  

    B)  Al, Na, Cu     

    C)  Na, Cu, Fe                 

    D)  K, Al, Cu        

    Correct Answer: D

    Solution :

    More reactive metals like Na, K react violently with dilute acids. Reaction is slower for less reactive metals and, copper, silver and gold do not react with acids.


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