A.involves exchange of electrons in electrochemical corrosion only
B.involves exchange of electrons in chemical corrosion only
C.involves exchange of electrons both in electrochemical and chemical corrosion only
D.is a physical phenomenon
A.involves exchange of electrons in electrochemical corrosion only
B.involves exchange of electrons in chemical corrosion only
C.involves exchange of electrons both in electrochemical and chemical corrosion only
D.is a physical phenomenon