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 which method can a solid separate by changing directly into gas?

Answer and explanation

Correct answer: Sublimation

The governing concept is sublimation, a change of state in which a suitable solid changes directly into vapour without first becoming a liquid. When a mixture contains one sublimable solid and another non-sublimable solid, gentle heating allows the first substance to vaporise; cooling a suitable surface can deposit it again as a solid, leaving the other component behind. Thus option A is correct. Filtration uses a porous barrier, sedimentation allows heavier particles to settle under gravity, and decantation pours off the clear liquid above a settled solid. Examples of sublimable substances include camphor and ammonium chloride, although the exact conditions depend on the substance.

Related tags

ChemistryNature-Of-MatterSublimationNature Of MatterSome 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.