11th Class Chemistry Classification of Elements and Periodicity in Properties

  • question_answer 64)   In the following questions two or more options may be correct. Which of the following elements can show covalency greater than 4? (a) Be                                    (b) P                                      (c) S                                       (d) B

    Answer:

      (b, c) Elements of 3rd period such as ?P' and 'S' having vacant d-orbitals can show covalency more than 4.

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