NEET Chemistry Types of Solutions MCQ Question
A gaseous solution consists of 5 moles of nitrogen gas and 3 moles of oxygen gas. What is the mole fraction of oxygen in this solution?
0.375
0.600
0.250
0.400
Correct Answer
Detailed Explanation
The mole fraction of oxygen is calculated as the number of moles of oxygen divided by the total number of moles in the solution: 3/(5+3) = 0.375. This aligns with the concept of expressing concentration of solutions in quantitative terms from the given NCERT context.
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