Chemistry - Redox Reactions Question with Solution | TestHub

ChemistryRedox ReactionsMiscellaneous/MixedEasy2 minPYQ_2020
ChemistryEasynumerical

Find the sum of the coefficients“a, b, c and d”,
in the given balanced chemical reaction,IO3-+a I-+b H+→c H2O+d I2

Answer:
17.00
Solution:

IO3–+ aI–+ bH+→cH2O + dI2

Step 1:I–1→I2oxidation 

IO3–→I2reduction 

Step 2:2IO3–+ 12H+→I2+ 6H2O

Step 3:2IO3–+ 12H++ 10e→I2+ 6H2O

2I– →I2+ 2e

Step 4:2IO3–+ 12H++ 10e–→I2+ 6H2O

2I–→I2+ 2e5

Step 5:2IO3–+ 10I–+ 12H+→6I2+ 6H2O

IO3–+ 5I–+ 6H+→3I2+ 3H2O

On comparing,a = 5, b = 6, c = 3, d = 3

Stream:NTA_ABHYASSubject:ChemistryTopic:Redox ReactionsSubtopic:Miscellaneous/Mixed
⏱ 2mℹ️ Source: PYQ_2020

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