Question

which pairing matches the type of substance with the item it donates? a. acid: h ion; base: proton b. acid: proton; base: electron pair c. acid: electron pair; base: proton d. acid: electron pair; base: h ion

Answer 1

The correct option is  B.
A Bronsted Lowry [which is usually a Lewis base] base can donate a pair of electrons to the hydrogen ion. The proton is a Lewis acid and it can accept a pair of electrons.
A Lewis acid is a substance that can accept a pair of non bonding electrons while a Lewis base is a substance which can donate a pair of non bonding electrons.