2. Sample Papers
  3. Railways
  4. General Science & Technology
  5. Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति

Railways General Science & Technology Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति Sample Paper Classification of Elements and Periodicity in Properties Sample Test Paper-15

  • question_answer
    The first element of rare earth metals is

    A)  Cerium

    B)  actinium

    C)  Uranium          

    D)  lanthanum

    Correct Answer:


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