Hard Chemistry Chapter 01: Solutions Class 12 Level 6

30 मिलीलीटर अम्ल को जल में मिलाकर 150 मिलीलीटर विलयन बनाया गया। अम्ल का आयतन प्रतिशत कितना है?

30 mL acid is mixed with water to make 150 mL solution. What is the volume percentage of acid?

Explanation opens after your attempt
Correct Answer

B. 20 प्रतिशत / 20 percent

Step 1

Concept

Volume percent = volume of solute ÷ total volume of solution × 100.

Step 2

Why this answer is correct

Acid volume is 30 mL and solution volume is 150 mL. Percentage = 30 ÷ 150 × 100 = 20 percent.

Step 3

Exam Tip

When final volume is given, use it, not only the volume of water. चरण 1: आयतन प्रतिशत = विलेय का आयतन ÷ विलयन का कुल आयतन × १००। चरण 2: अम्ल का आयतन ३० मिलीलीटर और विलयन का आयतन १५० मिलीलीटर है। प्रतिशत = ३० ÷ १५० × १०० = २० प्रतिशत। चरण 3: अंतिम आयतन मिलने पर उसी का उपयोग करें, केवल जल का आयतन नहीं।

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