Railways General Science & Technology Metals and Non-metals / धातु और अधातु Sample Paper Properties and Uses of Metals and Non-Metals Sample Test Paper-19

  • question_answer
    The first metal to be used by man was

    A)  Aluminium       

    B)  copper

    C)  Silver  

    D)  iron

    Correct Answer: B


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