In which of the following reactions does the underlined species act as the reducing agent?
(l) 
(II) 
(III) 
(IV) 
Choose the most appropriate answer from the options given below:
Text Solution
Verified by ExpertsThe correct answer is:
C
A reducing agent is the species that loses 
(gets oxidized).
(I) ( 
underlined): 
is the oxidizing agent, not reducing.
(II) ( 
underlined): 
in 
is oxidizing, not reducing.
(III) ( Br underlined):
is reducing.
(IV) ( 
underlined): 
in 
(oxidation) 
is reducing.
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