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 most electropositive element among the following is

    A)  Na                  

    B)  Ca

    C)  K                    

    D)  Cs

    Correct Answer:


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