Which of the following is not a concentration term?
Molarity
Molality
Mole fraction
None of the above
All of the options mentioned (a) Molarity, (b) Molality, and (c) Mole fraction are concentration terms used to express the concentration of a solution.
(a) Molarity is defined as the number of moles of solute per liter of the solution. It is denoted by M.
(b) Molality is defined as the number of moles of solute per kilogram of the solvent. It is denoted by m.
(c) Mole fraction is defined as the ratio of the number of moles of a component to the total number of moles in the solution. It is denoted by x.
Therefore, option d) is the correct answer to the above question.