Which of the following statement regarding is wrong.
(A) It is stable in acid medium
(B) It acts as oxidising as well as reducing agent
(C) It has zero dipole moment
(D) Pure is slightly acidic
(C). is a polar compound and its dipole moment is not zero. It is stable in acid medium
because its decomposition can be retarded by adding small amounts of acid. It also acts as
oxidising and reducing agent. Pure is slightly acidic, because its aqueous solution is
slightly or weakly acidic.