MCQ
To Convert cyclononatetraene in aromatic ion the process needed is
- AAddition of one more $\pi $ bond
- BAddition of two more $\pi $ bond
- ✓Loss of $H^+$ from $sp^3$ hybridised carbon
- DLoss of $H^+$ from $sp^2$ hybridised carbon
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$XeF_5^\Theta ,SO_3^{2 - },SO_4^{2 - },ClO_4^ - ,PO_4^{3 - },NO_2^ + $