A substance which participates readily in both acid-base and oxidation-reduction reactions is:

A substance which participates readily in both acid-base and oxidation-reduction reactions is:
A substance which participates readily in both acid-base and oxidation-reduction reactions is:
A substance which participates readily in both acid-base and oxidation-reduction reactions is:
A substance which participates readily in both acid-base and oxidation-reduction reactions is:

reactions