Class 10 Science - Quick Summary Notes
1. Chemical Reactions and Equations
Chemical reaction: Reactants -> Products
Types: Combination, Decomposition, Displacement, Double Displacement, Redox.
Example: 2H2 + O2 -> 2H2O
2. Acids, Bases, and Salts
Acid: Sour, pH < 7 | Base: Bitter, pH > 7
Litmus test, pH scale, neutralization.
Common salt = NaCl.
3. Metals and Non-Metals
Metals: Shiny, malleable, conductors
Non-metals: Dull, brittle, non-conductors
Example: Fe is metal, S is non-metal
4. Carbon and Its Compounds
Carbon forms covalent bonds.
Saturated (single bond) & Unsaturated (double/triple bond).
Examples: CH4, C2H4
5. Life Processes
Nutrition, Respiration, Transportation, Excretion
Plants: Photosynthesis
Humans: Digestive + Circulatory systems
1. Chemical Reactions and Equations
Chemical reaction: Reactants -> Products
Types: Combination, Decomposition, Displacement, Double Displacement, Redox.
Example: 2H2 + O2 -> 2H2O
2. Acids, Bases, and Salts
Acid: Sour, pH < 7 | Base: Bitter, pH > 7
Litmus test, pH scale, neutralization.
Common salt = NaCl.
3. Metals and Non-Metals
Metals: Shiny, malleable, conductors
Non-metals: Dull, brittle, non-conductors
Example: Fe is metal, S is non-metal
4. Carbon and Its Compounds
Carbon forms covalent bonds.
Saturated (single bond) & Unsaturated (double/triple bond).
Examples: CH4, C2H4
5. Life Processes
Nutrition, Respiration, Transportation, Excretion
Plants: Photosynthesis
Humans: Digestive + Circulatory systems
