Why is it safer to change coefficients rather than subscripts when balancing a chemical equation?
Answer and explanation
Correct answer: गुणांक पदार्थ की पहचान बदले बिना उसके अणुओं/सूत्रक इकाइयों की संख्या बदलते हैं।
Option A is correct. In balancing a chemical equation, coefficients change the number of molecules or formula units without changing the chemical formula or identity of a substance. For example, 2H₂O means two water molecules. In contrast, changing a subscript changes the substance itself; changing H₂O to H₂O₂ changes water into hydrogen peroxide.
Frequently asked questions
What is the correct answer to this question?
गुणांक पदार्थ की पहचान बदले बिना उसके अणुओं/सूत्रक इकाइयों की संख्या बदलते हैं।
Why is this the correct answer?
Option A is correct. In balancing a chemical equation, coefficients change the number of molecules or formula units without changing the chemical formula or identity of a substance. For example, 2H₂O means two water molecules. In contrast, changing a subscript changes the substance itself; changing H₂O to H₂O₂ changes water into hydrogen peroxide.
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.
