In: Chemistry
Which of these species is not amphiprotic?
a) HSO4-
b) H2PO4-
c) HPO42-
d) H2O
e) All of these are amphiprotic
answer : e) All of these are amphiprotic
Explanation :
An amphiprotic molecule or ion can either donate or accept a proton, thus acting either as an acid or a base.
Examples : Water, amino acids,HCO3- and HSO4- ions common examples of amphiprotic species.
a)
HSO4- + H+ ----------------> H2SO4
base acid
HSO4- ----------------> SO42- + H+
acid base
here this act as both acid and base. so this is amphiprotic