MCQ
Iodoform is formed on warming ${I_2}$ and $NaOH$ with
- ✓${C_2}{H_5}OH$
- B$C{H_3}OH$
- C$HCOOH$
- D${C_6}{H_6}$
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$(i)\, H_3PO_4+H_2O \rightarrow H_3O^+ + H_2PO_4^-$
$(ii)\, H_2PO 4^- + H_2O \rightarrow HPO_4^{2-} + H_3O^+$
$(iii)\, H_2PO_4^-+ OH^- \rightarrow H_3PO_4 + O^{2-}$
In which of the above does $H_2PO_4^-$ act as an acid ?