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JEE Main20244 Apr 2024Morning ShiftChemistryClassification of Elements and Periodicity in PropertiesActual

Number of elements from the following that CANNOT form compounds with valencies which match with their respective group valencies is ______. B, C, N, S, O, F, P, Al, Si

Options

  1. A7
  2. B3
  3. C5
  4. D6

Correct answer

B. 3

Step-by-step solution

N , O , F can't extend their valencies upto their group number due to the non-availability of vacant 2 ~d like orbital.

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