MCQ
Among the following, the weakest Lewis base is
- A${H^ - }$
- B$O{H^ - }$
- ✓$C{l^ - }$
- D$HCO_3^ - $
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$(a)\, IP$ of $O_{(g)}$ is less than $IP$ of $O_{(g)}^ - $
$(b)\, IP$ of $Ne_{(g)}$ is greater than $IP$ of $Ne_{(g)}^ + $
$(c)\, EA$ of $O_{(g)}^ + $ is greater than $EA$ of $O_{(g)}$
$(d)\, IP$ of $N_{(g)}$ is greater than $IP$ of $N_{(g)}^ + $
Amongst the above molecule(s)/ion(s), the number of molecule(s)/1on(s) having $sp ^{3} d ^{2}$ hybridisation is $........$