in
acidic medium?
(a) Both HCl and 
act as oxidising agents
(b) oxidises HCl into 
which is also an oxidising agent
(c) is a weaker oxidising agent than
HCl
(d) acts as a reducing agent in the
presence of HCl
Answer:
(b) HCl is not
used to make the medium acidic in oxidation reactions of 
in acidic medium. The reason is
that if HCl is used, the oxygen produced from +
HCl is partly utilised in oxidising HCl to Cl, which itself acts as an
oxidising agent and partly oxidises the reducing agent.
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