SSC CGL General Awareness · Study & Practice

General Science

AreaEconomy & Science DifficultyModerate SSC weightage6–9 questions (Tier 1)

General Science is the biggest GA scorer after Polity, and it draws straight from school NCERT — Physics, Chemistry and Biology basics plus everyday applications. SSC asks definitions, units, one-line formulae and 'which is which' facts (vitamins, gases, instruments). You do not need deep theory; you need the clean, memorised fact. This chapter packs the highest-frequency items by subject.

Topics

1 Physics Basics 4 worked · 5 practice · 8-Q test Start → 2 Chemistry Basics 4 worked · 5 practice · 8-Q test Start → 3 Biology & Human Body 4 worked · 5 practice · 8-Q test Start → 4 Science in Everyday Life 4 worked · 5 practice · 8-Q test Start →

⚡ SSC shortcuts & speed methods

The fastest ways to crack this chapter under time pressure — the techniques that separate a 95+ percentiler from the rest.

  • Memorise SI units (force N, energy J, power W) and one-line laws (F = ma).
  • Vitamin deficiencies: C → scurvy, D → rickets, A → night blindness.
  • Universal donor O, universal recipient AB; 206 bones; heart 4 chambers.
  • Air ≈ 78% nitrogen, 21% oxygen; CO₂ turns lime water milky.
  • pH < 7 acid, = 7 neutral, > 7 base.

⚠️ Common mistakes & traps

SSC is designed so that careless errors here cost you marks. Internalise each trap before the exam.

  • Confusing universal donor (O) with universal recipient (AB).
  • Mixing up vitamin-deficiency diseases.
  • Saying oxygen is the most abundant gas in air — it is nitrogen.
  • Forgetting power is in watts, not joules.

📈 SSC exam insight & PYQ analysis

SSC packs in 6–9 science items per Tier 1 — units, vitamins, blood groups, gases, and everyday-life "why" questions. Clean one-line facts from NCERT are exactly what is asked.

🎴 Flashcards — instant recall

Tap a card to reveal the answer. Drill these until they are automatic.

SI unit of force?Tap to reveal
Newton (N)
Powerhouse of the cell?Tap to reveal
Mitochondria
Scurvy is caused by deficiency of?Tap to reveal
Vitamin C
Most abundant gas in air?Tap to reveal
Nitrogen (~78%)
Universal donor blood group?Tap to reveal
O

📌 Quick revision

General Science is one-line NCERT recall across Physics (units, F = ma), Chemistry (H₂O, NaCl, pH, air composition) and Biology (cell, 206 bones, blood groups, vitamins), plus everyday "why" questions. Memorise the clean facts and units — they are exactly what SSC asks, and there are many marks here.

Chapter test

📝 General Science — Chapter Test
25 fresh questions · timed · full solutions
Start chapter test →
📊 My SSC analytics
Track scores, accuracy by topic and progress over time.
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🏆 Vidaara SSC success checklist

You have truly mastered General Science when you can tick every box below.

  • Recall every formula in this chapter without looking them up
  • Solve each topic’s practice set with at least 80% accuracy
  • Use the chapter shortcuts to cut your solving time in half
  • Spot and avoid every common trap listed above
  • Score 80%+ on the timed chapter test

📋 Chapter mastery scorecard

Track where you stand. Aim for the target before moving to the next chapter.

Skill checkpointTarget
Concept theory & formulas understood100%
Topic practice sets attempted (4 topics)4/4
Best topic-test score— → 80%+
Chapter test score— → 80%+
Flashcards drilled to instant recall5 cards