Question

Which statement describes covalent bases?

They have hydroxide ions.
They produce hydrogen ions.
They are often amines.
They are named the same as ionic compounds.

Answer 1

Answer: They are often amines.

Explanation:

Covalent bases are lewis bases which can donate lone pair of electrons. Amines contain
`NH_2` as the functional group and the lone pair on nitrogen can easily be shared.

`RNH_2+H^+\rightarrow RNH_3^+`

a) The bases which gives hydroxide ions in water are ionic bases as they are formed by complete transference of electrons. Example:
`Mg(OH)_2`

`Mg(OH)_2\rightarrow Mg^(2+)+2OH^-`

b) The substance which produce hydrogen ions are ionic acids. Example:
`HCl`

`HCl\rightarrow H^(+)+Cl^-`

d) Covalent compounds are named differently than ionic compounds.