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5th Class Science Matter and Materials Question Bank Matter

  • question_answer
    Raju went to the jeweler to sell off his pure gold chain. The gold chain weighed 100 gm. If the jeweller melts 100 gm of pure gold and sell it, he will get:

    A) Price for 100 gm of gold      

    B) Price for 130 gm of gold

    C) Price for 80 gm of gold               

    D) Price for 10 gm of gold

    Correct Answer: A

    Solution :

               When the jeweller melts pure gold, he is converting solid gold into liquid gold. The gold is undergoing a physical change wherein its state is being changed but it still remains as gold. Since it is pure gold, its weight in solid form is equal to that in liquid form. Thus after melting the gold, the jeweler will get the price of 100 gm of gold only.


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