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NEET Chemistry Concentration Terms MCQ Question

Type: MCQ-numerical-Medium-Class 12

What will be the mole fraction of ethanol in a sample of spirit containing 85% ethanol by mass?

A

0.69

B

0.82

C

0.85

D

0.60

Correct Answer

Option A

Detailed Explanation

Mole fraction is calculated using the formula: mole fraction = moles of ethanol / (moles of ethanol + moles of water).

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