Answer:
KNO3 (neutral salt); LiCN (basic salt); NH4Cl (acid salt)
Explanation:
KNO3 → K+ + NO3-
K+ comes from KOH, an strong base so it's the weak conjugate acid
NO3- comes from HNO3, an strong acid so it's the weak conjugate base
In water, they do not make hydrolisis so the salt is neutral.
LiCN → Li+ + CN-
Li+ comes from LiOH, an strong base so it's the weak conjugate acid
CN- comes from HCN, a weak acid, so it's the strong conjugate base
In water Li+ doesn't make hydrolisis, but cyanide does.
CN- + H2O ⇄ HCN + OH-
This is a basic salt
NH4Cl → NH4+ + Cl-
NH4+ comes from the ammonia (NH3), a weak base, so it's the strong conjugate acid.
Cl- comes from the HCl, an strong acid, so it's the weak conjugate base. In water it doesn't make hydrolisis.
As the NH4+ does make hydrolisis, the salt is acid.
NH4+ + H2O ⇄ NH3 + H3O+