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hardQ. No. 11172-which-gas-is-most-in-air

Which gas is most in air?

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Built around the concept in “Which gas is most in air?”, 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 Nitrogen.

ANitrogen
BOxygen
CCarbon dioxide
DArgon
Correct Answer: NitrogenYour Answer: A

Explanation

Nitrogen is the scientifically supported answer. Nitrogen makes up about 78% of air. The alternatives Oxygen, Carbon dioxide and Argon are legitimate scientific terms, but each belongs to a different function, property, material or context.

Important Notes

  • Verified answer: Nitrogen; option A, zero-based index
  • Core scientific fact: Nitrogen makes up about 78% of air.
  • Distractors Oxygen, Carbon dioxide, Argon represent different scientific associations.
  • Revision pair: “Which gas is most in air? — Nitrogen”.

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General Science FAQs

Common questions and clear answers for this topic.

Which gas is most in air?

Nitrogen. Nitrogen makes up about 78% of air.

Which concept should be used to solve this item?

Use the defining property and mechanism from chemistry.

Why are the other options unsuitable?

Oxygen, Carbon dioxide, Argon belong to different functions, properties or contexts.

How should this fact be revised?

Connect “Which gas is most in air?” with Nitrogen 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.

Which gas is most in air? | General Science MCQ | Exambodh