MCQ
$(I)\ POF_3\ (II)\ SOF_4\ (III)\ IOF_5$ On moving $I$ to $III$ which change is $NOT$ observed
- ANumber of $d-$ orbitals involved in bonding || $(I)$ One $\to$ $(II)$ Two $\to $ $(III)$ Three
- BNumber 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
- DNumber of lone pairs on central atom || $(I)$ Zero $\to$ $(II)$ Zero $\to $ $(III)$ Zero