Which option gives the correct statement about mole fraction?
Answer and explanation
Correct answer: Sum of mole fractions of all components is one
The mole fraction of a component is defined as the moles of that component divided by the total moles of all components. Adding these fractions gives the sum of all component moles divided by the same total, which is exactly 1. Each individual mole fraction is dimensionless and lies between 0 and 1. Thus option C is correct. Option D describes molarity, while A and B contradict the definition.
Frequently asked questions
What is the correct answer to this question?
Sum of mole fractions of all components is one
Why is this the correct answer?
The mole fraction of a component is defined as the moles of that component divided by the total moles of all components. Adding these fractions gives the sum of all component moles divided by the same total, which is exactly 1. Each individual mole fraction is dimensionless and lies between 0 and 1. Thus option C is correct. Option D describes molarity, while A and B contradict the definition.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Chapter 01: Solutions.
