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hardQ. No. 11075-which-gas-is-evolved-when-baking-soda-is-heated-strongly

Which gas is evolved when baking soda is heated strongly?

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Built around the concept in “Which gas is evolved when baking soda is heated strongly?”, this bilingual General Science item checks whether a learner can connect a scientific term with its exact property, mechanism or function. The verified answer is Carbon dioxide.

ACarbon dioxide
BHydrogen
CSulfur dioxide
DOxygen
Correct Answer: Carbon dioxideYour Answer: A

Explanation

The defining scientific property identifies Carbon dioxide. On heating, sodium bicarbonate decomposes and releases carbon dioxide. The alternatives Hydrogen, Sulfur dioxide and Oxygen are legitimate scientific terms, but each belongs to a different function, property, material or context.

Important Notes

  • Verified answer: Carbon dioxide; option A, zero-based index
  • Core scientific fact: On heating, sodium bicarbonate decomposes and releases carbon dioxide.
  • Distractors Hydrogen, Sulfur dioxide, Oxygen represent different scientific associations.
  • Revision pair: “Which gas is evolved when baking soda is heated strongly? — Carbon dioxide”.

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FAQ

General Science FAQs

Common questions and clear answers for this topic.

Which gas is evolved when baking soda is heated strongly?

Carbon dioxide. On heating, sodium bicarbonate decomposes and releases carbon dioxide.

Which concept should be used to solve this item?

Use the defining property and mechanism from chemistry.

Why are the other options unsuitable?

Hydrogen, Sulfur dioxide, Oxygen belong to different functions, properties or contexts.

How should this fact be revised?

Connect “Which gas is evolved when baking soda is heated strongly?” with Carbon dioxide and the supporting mechanism.

What is General Science and which topics are important for competitive exams?

General Science covers basic concepts in Physics, Chemistry, Biology, and Earth Science. It is an important section in competitive exams like SSC CGL, UPSC Prelims, Railway NTPC, and Defence exams. Questions include scientific laws, inventions, human body systems, chemical reactions, and everyday science phenomena. NCERT Science books from Class 6 to 10 are recommended.

What are Newton's Laws of Motion?

Newton's Three Laws of Motion: 1) First Law (Law of Inertia) - An object remains at rest or in uniform motion unless acted upon by an external force. 2) Second Law - Force equals mass times acceleration (F=ma). 3) Third Law - For every action there is an equal and opposite reaction. These laws are fundamental to Physics and frequently asked in SSC CGL, Railway, and NDA exams.

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Which gas is evolved when... | General Science MCQ | Exambodh