📌 SMART STUDY GUIDELINES (for top grades)
🧠 Active Recall: Cover answers & speak aloud → strengthens memory.
⏱️ Pomodoro 50/10: Study 50 min, break 10 min. Perfect for long questions.
📝 Concept maps: Draw trends (ionization energy, metallic character) and reaction mechanisms.
🔁 Weekly revision: Revisit short questions from chapters 1,2,8,9,11 repeatedly.
🌙 Toggle night mode for late-night preparation — reduce eye strain.
🎯 Prioritize: All exercise short questions (Chapter 6) + long questions (Down’s cell, benzene reactions).
✅ Use this sheet as your revision checklist. Mark completion mentally!
📖 CHAPTER-WISE IMPORTANT SHORT QUESTIONS
✨ Chapter 1: Periodic Classification
1. Why metals are good conductors?
2. Define hydration energy with examples.
3. Diamond is a non-conductor but graphite is good conductor. Why?
4. Ionization energy increases from left to right in a period. Justify.
5. How does hydrogen resemble with group IV-A elements.
6. Why oxidation number of noble gases is usually zero?
7. What is electron affinity? Give its trend in periodic table.
8. Justify the position of hydrogen at the top of group VII-A elements.
9. Give reasons that hydration energy of Al³⁺ ions more than Mg²⁺ ion?
10. Give differences of lithium from its own family members.
11. Why the size of an anion is always greater than its parent atom?
12. Name various classes of hydrides.
13. Why metallic character increases from top to bottom in a group of metals?
14. Alkali metals give ionic hydrides. Why?
15. Give four uses of nitric acid.
✨ Chapter 2: s-Block Elements
1. How does hydrogen resemble with alkali metals?
2. Write formula of borax and Chile saltpetre.
3. Give formula of natron and halite.
4. How will you distinguish between ethanol and propanol.
5. Give two similar properties of lithium and magnesium.
6. Write chemical formula of Beryl and Barite.
7. What are two major problems faced during the working of diaphragm cell?
8. Why Down’s cell is preferable method for the preparation of sodium on large scale?
9. Give formula of (i). Dolomite (ii.) Asbestos
10. What reaction occur when (i). Lithium carbonate is heated (ii). Sodium bicarbonate is heated.
✨ Chapter 3: Boron & Silicon Family
1. Write four uses of Borax.
2. What is borax bread test?
3. How is Borax used as water softening agent?
4. Why are borate glazes preferred over silicate glazes?
5. Give any four uses of aluminium in our daily life.
6. Give two similarities between carbon and silicate.
7. Give reaction of P₂O₅ with cold and hot water
8. The aqueous solution of borax is alkaline. Give reason.
9. What is carbonization?
10. Explain the structure of CO₂.
11. Write two uses of sodium silicate.
12. How borax can be prepared from colemanite? Give equation.
✨ Chapter 6: Transition Elements
★ All exercise short questions (Binding energy, paramagnetism, colour, complex formation).
✨ Chapter 7: Organic Chemistry Intro
1. What is organic chemistry? 2. Homocyclic/heterocyclic examples. 3. Importance of ethene. 4. Isomers & 4 types. 5. Functional groups with oxygen. 6. Thermal & steam cracking. 7. Catenation examples. 8. Cis-trans isomerism. 9. Coal tar fractions. 10. Octane number improvement. 11. Iodized salt. 12. Isomers of C₄H₁₀. 13. Sources of organic compounds. 14. Catalytic cracking.
✨ Chapter 8: Hydrocarbons
1. Distinguish ethane & ethyne? 2. π bond more reactive than σ bond? 3. Convert 1-butene to 1-butyne. 4. Four uses of methane. 5. Synthesize benzene & oxalic acid from ethyne. 6. Convert ethene → ethyl alcohol. 7. Markownikov’s rule. 8. Acidity of ethene? 9. Methane → formic acid. 10. Raney-Nickel uses. 11. Alkanes less reactive than alkenes. 12. Ethyne → acetaldehyde. 13. Cis/trans alkenes production. 14. Hydrogenolysis. 15. Baeyer’s test.
✨ Chapter 9: Benzene & Aromaticity
1. X-ray studies benzene structure. 2. Electrophile examples. 3. Ozonolysis of benzene. 4. Benzene to maleic acid. 5. Aromatic compounds. 6. Benzene less reactive than alkene. 7. Wurtz-Fitting reaction. 8. Oxidation reactions of benzene. 9. Fused ring aromatics. 10. Reaction with SO₃. 11. Prep from n-Hexane & sodium benzoate. 12. Nitration mechanism. 13. Reactivity towards electrophiles. 14. Cyclic structure diagram. 15. Aromatization.
✨ Chapter 10: Alkyl Halides
Preparation from ethyl bromide, SN1/SN2, Markownikov, elimination, Grignard reagent, Wurtz synthesis, conversion PCl₃/PI₅, etc.
✨ Chapter 11: Alcohols & Phenols
Methanol → ethanol, primary vs secondary, Lucas test, fermentation, rectified spirit, wood spirit, reactions with PBr₃, boiling point comparison, polyhydric alcohols.
✨ Chapter 13+14: Carboxylic Acids, Proteins, Lipids
Peptides, ninhydrin test, esterification mechanism, essential/non-essential amino acids, dicarboxylic acids, Strecker synthesis, uses of acetic acid, zwitter ions, rancidity, saponification number, polymers classification.
✨ Chapter 15+16: Cement, Fertilizers, Environment
Decomposition zone in cement, woody/non-wood raw materials for paper, macronutrients, CFCs & ozone, SN1 vs SN2, need for fertilizers, prilling of urea, bleaching agents, clinker & setting, role of phosphorus/potassium, paper making steps.
📌 IMPORTANT LONG QUESTIONS (HIGH WEIGHTAGE)
Chap 1 Improvements in Mendeleev’s periodic table · Oxides & its types · Halides types · Position of Hydrogen.
Chap 2 Peculiar behavior of Be · Down’s cell · Nelson’s cell · Role of lime.
Chap 5 Peculiar behavior of F · Oxyacids nomenclature · Bleaching powder prep & reactions · Uses of F, Chlorine, Noble gases.
Chap 6 Wrought Iron · Steel manufacturing (Bessemer’s process) · Corrosion.
Chap 7 sp² hybridization · Cracking types · Isomerism (structural & cis-trans).
Chap 8 Preparation of alkanes, alkenes, alkynes · Halogenation of alkanes · Ozonolysis · Acidic nature of alkynes & uses.
Chap 9 Benzene preparation · Sulphonation, Halogenation, Nitration · Friedel-Crafts reactions · Stability of benzene.
Chap 11 Preparation of Ethanol by fermentation · Lucas test · Preparation of Phenol & its chemical reactions.
Chap 12 Mechanism of HCN & NaHSO₃ · Aldol condensation · Cannizzaro reaction · Ammonia derivatives mechanism & uses.
Chap 13 Formation of Amide & physical characteristics.
Extra Trends of metallic character, periodic table improvements, hydrides classification, sodium hydroxide diaphragm cell, water glass preparation, Baeyer’s test, etc.
💡 Teacher’s tip: Chapter 6 all exercise short questions (binding energy, paramagnetism) are frequently tested. Practice conversion reactions from Ch 8 & Ch 10 thoroughly. For long questions, focus on Down’s cell, Nelson cell, Benzene reactions & hybridization.