General Science PYQs with Detailed Explanations
Topic-wise lessons, explanations, exam traps and revision tests
Detailed PYQ Lessons
Physics Previous Year Questions with Explanations
Units, electricity, optics, sound, induction, buoyancy and everyday physics.
Chemistry Previous Year Questions with Explanations
Atomic structure, acids and bases, redox, catalysts, alloys and common compounds.
Biology and Human Body PYQs with Explanations
Cells, organelles, hormones, blood, vitamins, vectors and human physiology.
Recommended Study Order
- Read the first topic’s rapid-answer map.
- Attempt its ten questions without notes.
- Record every wrong concept in a revision notebook.
- Complete the other linked lessons.
- Attempt the mixed pillar test below.
10 Mixed Revision MCQs
The SI unit of force is:
Force is measured in newtons.
The SI unit of work and energy is:
Work and energy are measured in joules.
Ohm’s law is expressed as:
Ohm’s law relates potential difference, current and resistance: V = IR.
The speed of light in vacuum is approximately:
Light travels in vacuum at about 3 × 10⁸ metres per second.
The atomic number of an element equals the number of:
Atomic number is the number of protons.
A neutral aqueous solution at 25°C has a pH of:
A neutral solution has pH 7 at 25°C.
An acid turns blue litmus:
Acids turn blue litmus red.
Oxidation is commonly described as:
Oxidation is loss of electrons; reduction is gain of electrons.
The basic structural and functional unit of life is the:
The cell is the basic unit of life.
The “powerhouse of the cell” is the:
Mitochondria generate much of the cell’s ATP through respiration.
Frequently Asked Questions
Should I start with pillar pages or detailed lessons?
Use the pillar to understand the roadmap, then complete detailed lessons one by one.
Are explanations sufficient for final revision?
They provide a strong base, but students should also consult the official syllabus and standard textbooks.
How often should I reattempt the test?
Reattempt after 48 hours and after one week until you consistently score at least 8/10.
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