🔹 Important Questions (1–30)
Q1. Define chemical reaction with example.
Q2. What is balancing of chemical equations?
Q3. Types of chemical reactions.
Q4. What is oxidation and reduction?
Q5. What is corrosion? Example.
Q6. What is rancidity in food?
Q7. Define acids, bases and salts.
Q8. pH scale and importance.
Q9. What is neutralization reaction?
Q10. Properties of acids and bases.
Q11. What is indicator? Types of indicators.
Q12. Common salt and its uses.
Q13. Baking soda and washing soda.
Q14. Water of crystallization.
Q15. Metals and non-metals difference.
Q16. Physical properties of metals.
Q17. Chemical properties of metals.
Q18. What is reactivity series?
Q19. Extraction of metals.
Q20. What is alloy? Examples.
Q21. Carbon compounds and bonding.
Q22. Covalent bonding in carbon.
Q23. Homologous series.
Q24. Ethanol and ethanoic acid properties.
Q25. Soaps and detergents difference.
Q26. What is esterification reaction?
Q27. Cleansing action of soap.
Q28. Periodic table introduction.
Q29. Modern periodic law.
Q30. Electronic configuration of elements.
🔹 Important Diagrams
⚗️ pH Scale
Acidic ← 0 1 2 3 4 5 6 | 7 | 8 9 10 11 12 13 14 → Basic
Neutral
⚗️ Neutralization Reaction
Acid + Base → Salt + Water
HCl + NaOH → NaCl + H₂O
⚛️ Carbon Bonding (Simple)
H
|
H–C–H
|
H
(Methane - CH₄)
