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Per NCERT, what is MOLE FRACTION (x) of a component A in a solution?
AMass of A / mass of solution
BMoles of A / volume of solution
CMoles of A / mass of solvent
DNumber of moles of A divided by total number of moles of all components (solute + solvent)
Answer & Solution
Correct answer: D. Number of moles of A divided by total number of moles of all components (solute + solvent)
Per NCERT §2 Mole Fraction, x_A = n_A / (n_A + n_B + ...). Dimensionless ratio.
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