MCQ
$(I)\ POF_3\ (II)\ SOF_4\ (III)\ IOF_5$ On moving $I$ to $III$ which change is $NOT$ observed
  • A
    Number of $d-$ orbitals involved in bonding  ||  $(I)$ One $\to$ $(II)$ Two $\to $ $(III)$ Three
  • B
    Number of orbitals involved in hybridisation  ||   $(I)$ Four  $\to$ $(II)$ Five $\to $ $(III)$ Six
  • Number of $d \pi -p \pi$ bonds in the respective molecule  ||  $(I)$ One $\to$ $(II)$ Two $\to $ $(III)$ Three
  • D
    Number of lone pairs on central atom  ||  $(I)$ Zero  $\to$ $(II)$ Zero $\to $ $(III)$ Zero

Answer

Correct option: C.
Number of $d \pi -p \pi$ bonds in the respective molecule  ||  $(I)$ One $\to$ $(II)$ Two $\to $ $(III)$ Three
c

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