If a substance 'A' dissolves in solution of a mixture of 'B' and 'C' with their respective number of moles as nA, nB…
Solutions · Class 12 · JEE Main Previous Year Question
If a substance 'A' dissolves in solution of a mixture of 'B' and 'C' with their respective number of moles as , and , mole fraction of C in the solution is:
- a
- b✓
- c
- d
Strategy:\n> Mole fraction () is the ratio of the number of moles of a specific component to the total number of moles of all species in the mixture.\n\nStep 1: Calculate total moles\nTotal moles \n\nStep 2: Apply mole fraction definition for C\n\n\n
Practice this question with progress tracking
Want timed practice with adaptive difficulty? Solve this question (and hundreds more from Solutions) inside The Crucible, our adaptive practice platform.
More JEE Main Solutions PYQs
What is the freezing point depression constant of a solvent, 50 g of which contain 1 g non volatile solute (molar mass 256 g mol-1) and the decrease in freezing point is 0.40 K?
The quantity which changes with temperature is:
The Molarity (M) of an aqueous solution containing 5.85 g of NaCl in 500 mL water is: (Given: Molar Mass Na: 23 and Cl: 35.5 g mol⁻¹)
What is the mass ratio of ethylene glycol (C2H6O2, molar mass = 62 g/mol) required for making 500 g of 0.25 molal aqueous solution and 250 mL of 0.25 molar aqueous solution?
Given below are two statements: one is labelled as Assertion and the other is labelled as Reason. Assertion: At 10°C, the density of a 5 M solution of KCl [atomic masses of K & Cl are 39 & 35.5 g…