Easy Chemistry Chapter 01: Solutions Class 12 Level 6

यदि विलेय का मोल अंश 0.75 है तो विलायक का मोल अंश कितना होगा?

If the mole fraction of solute is 0.75, what is the mole fraction of solvent?

Explanation opens after your attempt
Correct Answer

A. 0.25

Step 1

Concept

In a binary solution, the sum of both mole fractions is 1.

Step 2

Why this answer is correct

Mole fraction of solvent = 1 - 0.75 = 0.25.

Step 3

Exam Tip

The sum-one rule helps in quick calculation. चरण 1: द्विघटकीय विलयन में दोनों मोल अंशों का योग 1 होता है। चरण 2: विलायक का मोल अंश = 1 - 0.75 = 0.25। चरण 3: योग 1 का नियम तेज गणना में मदद करता है।

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