In an unbalanced equation, oxygen atoms are fewer on the right side. What is the most correct method during balancing?
Answer and explanation
Correct answer: Placing suitable coefficients
Balancing a chemical equation means making the number of atoms of each element equal on both sides while keeping the identities of the substances unchanged. This is done by placing suitable whole-number coefficients before chemical formulae. Changing a subscript changes the substance itself, and removing a reactant or reversing the arrow changes the reaction rather than balancing it. Therefore, option B is the correct method.
Frequently asked questions
What is the correct answer to this question?
Placing suitable coefficients
Why is this the correct answer?
Balancing a chemical equation means making the number of atoms of each element equal on both sides while keeping the identities of the substances unchanged. This is done by placing suitable whole-number coefficients before chemical formulae. Changing a subscript changes the substance itself, and removing a reactant or reversing the arrow changes the reaction rather than balancing it. Therefore, option B is the correct method.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
