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UPSC Chemistry Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति Question Bank Elements Classification and Chemical Bonding

  • question_answer
          The octet rule is not valid for which one of the following molecules? [NDA]

    A) \[C{{O}_{2}}\]               

    B)                  \[{{H}_{2}}S\]

    C) \[N{{H}_{3}}\]               

    D)                  \[B{{F}_{3}}\]

    Correct Answer: D

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