Hard Chemistry Chapter 01: Solutions Class 12 Level 5

पाँच ग्राम विलेय को विलयन बनाकर कुल आयतन दो सौ पचास मिलीलीटर किया गया। द्रव्यमान आयतन प्रतिशत कितना है?

5 g solute is dissolved and the final volume of solution is made 250 mL. What is the mass by volume percent?

Explanation opens after your attempt
Correct Answer

B. 2 प्रतिशत / 2 percent

Step 1

Concept

Mass by volume percent means grams of solute per 100 mL of solution.

Step 2

Why this answer is correct

If 5 g is present in 250 mL then 100 mL contains 2 g.

Step 3

Exam Tip

The answer is 2 percent and final volume is the base. चरण 1: द्रव्यमान आयतन प्रतिशत का अर्थ सौ मिलीलीटर विलयन में विलेय का ग्राम द्रव्यमान है। चरण 2: पाँच ग्राम दो सौ पचास मिलीलीटर में है इसलिए सौ मिलीलीटर में दो ग्राम होगा। चरण 3: उत्तर दो प्रतिशत है। हमेशा अंतिम आयतन को आधार बनाएं।

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