Easy Chemistry Chapter 01: Solutions Class 12 Level 5

12 ग्राम यूरिया को 300 मिलीलीटर विलयन में घोला गया। द्रव्यमान-आयतन प्रतिशत क्या होगा?

12 g urea is dissolved in 300 mL solution. What is the mass-volume percentage?

Explanation opens after your attempt
Correct Answer

A. 4 प्रतिशत / 4 percent

Step 1

Concept

Mass-volume percentage = grams of solute/mL of solution × 100.

Step 2

Why this answer is correct

12/300 × 100 = 4 percent.

Step 3

Exam Tip

In this type, you do not need to convert mL into litres. चरण 1: द्रव्यमान-आयतन प्रतिशत = ग्राम विलेय/मिलीलीटर विलयन × 100। चरण 2: 12/300 × 100 = 4 प्रतिशत। चरण 3: ऐसे प्रश्न में मिलीलीटर को लीटर में बदलने की जरूरत नहीं होती।

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