AP EAMCET · Chemistry · Some Basic Concepts of Chemistry
Which among the following is a unitless physical quantity?
- A Molality
- B Molarity
- C Mole fraction
- D Normality
Answer & Solution
Correct Answer
(C) Mole fraction
Step-by-step Solution
Detailed explanation
Mole fraction is a unit of concentration, defined to be equal to the number of moles of a component divided by the total number of moles of a solution. Because it is a ratio, mole fraction is a unitless expression. The mole fraction of all components of a solution, when added…
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