CBSE Grade 11 Science (Physics/Chemistry/Biology) Exam Survival Guide

Window: Annual Exam | Sections: Physics, Chemistry, Biology

Must-do topics

• Physics: Units & Dimensions, Motion in straight line & plane, Laws of Motion, Work–Energy–Power, Gravitation, Oscillations, Thermodynamics
• Chemistry: Mole concept, Atomic structure, Chemical bonding, Equilibrium, Redox, Thermodynamics, Hydrocarbons
• Biology: Cell unit, Biomolecules, Plant physiology (photosynthesis, respiration), Human physiology (digestion, respiration, circulation, excretion), Morphology of plants/animals

Top traps (avoid)

• Physics: wrong units, vector resolution mistakes, sign convention errors
• Chemistry: mole↔mass slip; wrong equilibrium expression; forgetting hybridisation rule
• Biology: labeling without function; mixing plant vs animal tissues

Study split
35% Physics numericals | 35% Chemistry equations + theory | 30% Biology diagrams + definitions

Last-48h checklist

• 10 derivations (motion/energy/oscillations)
• Balance 15 reactions; redo mole → mass conversions
• Label 5 diagrams (cell, nephron, leaf, heart, brain)
• Write 5 bio processes in step flow (photosynthesis, respiration etc.)

Quick facts/frames

• Newton’s 2nd law: F=dp/dtF=dp/dtF=dp/dt
• Equilibrium constant K=[products][reactants]K=\frac{[products]}{[reactants]}K=[reactants][products]​
• Photosynthesis: Light reaction → Calvin cycle → glucose

Speed tactics

• Physics: show units each step; box final with SI
• Chem: write reaction arrow clean, mention state symbols
• Bio: definition → function → labeled diagram

Exam-day mini-plan
Physics numericals early; Chem equations mid; Bio diagrams at end
Reserve 15 min for units + labels