Redox Reactions And Electrochemistry Ques 523
Question: In which of the following reactions $ H_2O_2 $ is a reducing agent [CPMT 1981; NCERT 1981; BHU 1999]
Options:
A) $ 2FeCl_2+2HCl+H_2O_2,\to ,2FeCl_3+2H_2O $
B) $ Cl_2+H_2O_2\to 2HCl+O_2 $
C) $ 2HI+H_2O_2,\to 2H_2O+I_2 $
D) $ H_2SO_3+H_2O_2,\to H_2SO_4+H_2O $
Show Answer
Answer:
Correct Answer: B
Solution:
$ C\overset{o}{\mathop{l_2}},+H_2O_2\to \overset{,-1}{\mathop{2HCl}},+O_2 $ . In this reaction chlorine reduced from zero to - 1 oxidation state.
