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hardQ. No. 11161-which-acid-is-chiefly-responsible-for-the-sour-taste-of-curd

Which acid is chiefly responsible for the sour taste of curd?

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Built around the concept in “Which acid is chiefly responsible for the sour taste of curd?”, 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 Lactic acid.

AOxalic acid
BCitric acid
CLactic acid
DAcetic acid
Correct Answer: Lactic acidYour Answer: C

Explanation

The concept tested here leads specifically to Lactic acid. Lactic acid is produced when lactic-acid bacteria ferment lactose in milk, lowering pH and contributing to curd formation and sour taste. A common name, formula, acid-base character or periodic position provides a stronger basis than superficial similarity between substances. The alternatives Oxalic acid, Citric acid and Acetic acid are legitimate scientific terms, but each belongs to a different function, property, material or context. This builds reliable recall for SSC, Railway, State exams and other General Science tests while preserving conceptual understanding.

Important Notes

  • Verified answer: Lactic acid; option C, zero-based index
  • Core scientific fact: Lactic acid is produced when lactic-acid bacteria ferment lactose in milk, lowering pH and contributing to curd formation and sour taste.
  • Distractors Oxalic acid, Citric acid, Acetic acid represent different scientific associations.
  • Revision pair: “Which acid is chiefly responsible for the sour taste of curd? — Lactic acid”.

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General Science FAQs

Common questions and clear answers for this topic.

Which acid is chiefly responsible for the sour taste of curd?

Lactic acid. Lactic acid is produced when lactic-acid bacteria ferment lactose in milk, lowering pH and contributing to curd formation and sour taste.

Which concept should be used to solve this item?

Use the defining property and mechanism from chemistry.

Why are the other options unsuitable?

Oxalic acid, Citric acid, Acetic acid belong to different functions, properties or contexts.

How should this fact be revised?

Connect “Which acid is chiefly responsible for the sour taste of curd?” with Lactic acid 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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