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General Science Flashcards

7 cards from real SSC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. Which of the following is the SI unit of electric current?

    Answer: Ampere

    The Ampere (A) is the SI base unit of electric current, defined as the flow of one coulomb of charge per second.

  2. Which gas is produced when dilute hydrochloric acid reacts with zinc?

    Answer: Hydrogen

    When zinc reacts with dilute HCl, zinc chloride and hydrogen gas are produced: Zn + 2HCl → ZnCl₂ + H₂.

  3. What is the process by which green plants make their own food using sunlight?

    Answer: Photosynthesis

    Photosynthesis is the process by which plants use sunlight, water, and CO₂ to produce glucose and oxygen.

  4. The speed of light in a vacuum is approximately:

    Answer: 3 × 10⁸ m/s

    The speed of light in vacuum is approximately 3 × 10⁸ meters per second (about 300,000 km/s).

  5. Which organ in the human body produces insulin?

    Answer: Pancreas

    Insulin is produced by the beta cells of the islets of Langerhans in the pancreas to regulate blood glucose levels.

  6. Newton's First Law of Motion is also known as the Law of:

    Answer: Inertia

    Newton's First Law states that a body remains at rest or in uniform motion unless acted upon by an external force — this property is called inertia.

  7. Which element has the chemical symbol 'Fe'?

    Answer: Iron

    Fe comes from 'Ferrum', the Latin word for iron; it is the chemical symbol for iron on the periodic table.