Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
0 reads0 ratings0 helpful

In a pure compound the mass ratio A:B is 4:9 and total mass is 52 grams. What is the mass of B?

Answer and explanation

Correct answer: 36 grams

The governing principle is the law of definite proportions, which says that elements in a pure compound occur in a fixed mass ratio. The ratio A:B is 4:9, giving 4 + 9 = 13 total parts. Since the compound weighs 52 g, one ratio part weighs 52 ÷ 13 = 4 g. B represents 9 parts, so its mass is 9 × 4 = 36 g. Thus, option C is correct. Option A is the mass of A, not B. Option B is the total mass of the compound, and option D would correspond to treating the ratio incorrectly. The complementary mass of A is 52 − 36 = 16 g, which confirms both the total and the 4:9 ratio.

Related tags

ChemistryLaws-Of-Chemical-CombinationDefinite-ProportionsLaws Of Chemical CombinationSome Basic Concepts Of ChemistryClass 11 Mcq

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.