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

Which example shows physical state and chemical class separately?

Answer and explanation

Correct answer: Oxygen gas is an element

Physical state and chemical class describe two different features of matter. Physical state tells us whether a substance is solid, liquid, or gas under stated conditions. Chemical class tells us whether it is an element, compound, or mixture, based on its composition. These two descriptions can be given together without contradiction.

Oxygen is a gas under ordinary conditions, so “gas” describes its physical state. It is made only of oxygen atoms and cannot be chemically broken into a simpler substance, so it is an element. Thus option A correctly shows both ideas separately. Soil is generally a mixture and is not always a gas. Water as a pure substance is a compound, though natural water may contain mixtures. Gold is an element, not a compound, so the other choices are incorrect.

Related tags

ChemistryNature-Of-MatterClass-11

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.