Chemistry - GOC Question with Solution | TestHub

As the strength of conjugate base$\alpha$1/acidic strength

As acidic strength is

$\text{HOH}>\text{HC}\equiv \text{CH}>\text{N}{\text{H}}_3>\text{C}{\text{H}}_3-\text{C}{\text{H}}_3$

So$\text{C}{\text{H}}_3–\text{C}{{\text{H}}_2}^{-}>\text{N}{{\text{H}}_2}^{-}>\mathrm{H}–\mathrm{C}\equiv {\mathrm{C}}^{-}>\text{O}{\text{H}}^{-}$