Answer
(ii) and (iv)
Step-by-step explanation
In the given reaction,
HOAc is the acid because it donates its proton to H2O to become a conjugate base OA-c.
H₂O acts as the base by accepting the proton to become a conjugate acid H₃O⁺
Hence,
(i) OA-c is the conjugate base of H₂O. NO.
OA-c is the conjugate base of HOAc
(ii) OA-c is the conjugate base of HOAc. YES.
(iii) H₃O⁺ is the conjugate base of HOAc. NO.
H₃O⁺ is the conjugate acid of H₂O.
(iv) H₃O⁺ is the conjugate acid of H₂O. YES.
The correct statements that are true about the given reaction are:
(ii) and (iv)