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JEE Main & Advanced Chemistry Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति Question Bank Self Evaluation Test - Classification of Elements and Periodicity in Properties

  • question_answer
    Consider the following information about element P and Q: 
      Period number Group number
    P 2 15
    Q 3 2
     

    A) QP                   

    B) \[{{Q}_{2}}{{P}_{3}}\]

    C) \[{{Q}_{3}}{{P}_{2}}\]

    D) \[{{Q}_{2}}P\]

    Correct Answer: C

    Solution :

         [c] P is a trivalent non-metal and Q is a divalent metal. Hence formula of compound is \[{{Q}_{3}}{{P}_{2}}.\]  


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