Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
5.5k views
in Basic Concepts of Chemistry and Chemical Calculations by (44.9k points)
closed by

Write the steps to be followed while balancing redox equation by oxidation number method.

1 Answer

+1 vote
by (45.7k points)
selected by
 
Best answer

Oxidation number method: This method is based on the fact that 

(Number of electrons lost by atoms) = (Number of electrons gained by atoms) 

Steps to be followed while balancing Redox reactions by Oxidation Number method: 

1. Write skeleton equation representing redox reaction

2. Write the oxidation number of atoms undergoing oxidation and reduction. 

3. Calculate the increase or decrease in oxidation numbers per atom. 

4. Make increase in oxidation number equal to decrease in oxidation number by multiplying the formula of oxidant and reductant by suitable numbers. 

5. Balance the equation atomically on both sides except O and H atoms.

6. Balance oxygen atoms by adding required number of water molecules to the side deficient in oxygen atoms. 

7. Add required number of H+ ions to the side deficient in hydrogen atom if the reaction is in acidic medium. 

8. For reactions in basic medium, add H2O molecules to the side deficient in hydrogen atoms and simultaneously add equal number of OH ions on the other side of the equation. 

9. Finally balance the equation by cancelling common species present on both sides of the equation.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

...