Hydrogen And Its Compounds Question 25
Question: In which of the following reactions, $ H_2O_2 $ is acting as a reducing agent
Options:
A) $ H_2O_2+SO_2\to H_2SO_4 $
B) $ 2KI+H_2O_2\to 2KOH+I_2 $
C) $ PbS+4H_2O_2\to PbSO_4+4H_2O $
D) $ Ag_2O+H_2O_2\to 2Ag+H_2O+O_2 $
Show Answer
Answer:
Correct Answer: D
Solution:
[d] $ SO_2 $ changes to $ H_2SO_4 $ (O.N. changes from +4 to +6 oxidation) $ 2KI\to I_2 $ (O.S. changes from $ -1 $ to 0 oxidation) $ PbS\to PbSO_4 $ (O.S. changes from $ -2 $ to +6 oxidation) $ Ag_2O\to 2Ag $ (O.S. changes from +1 to 0 reduction)
BETA
