Chemistry : Most Important Questions

## Solid State

1. Distinguish between Crystalline and Amorphous Solids .
2. Give the Classification of Solids .
3. Derive packing efficiency of : a) Simple Cubic b) Body Centered Cubic c) Face centered Cubic Cell
4. Explain : a) Point Defect b) Interstitial Defect c) Impurity Defect
5. Explain : a) Schottky Defect b) Frenkel Defect
6. Explain Band Theory on the basis of Molecular Orbital Theory .
7. Explain Bravais Lattices
8. Write Short Note on Semiconductors .
9. Explain : a) Diamagnetism b) Paramagnetism c) Ferromagnetism

## Solutions and Colligative Properties

1. State and explain : a) Henry Law b) Raoult's Law c) Van't Hoff General Soluton
2. Write a short Note on Colligative Properties .

## Halogn Derivativs of Alkanes and Haloarenes

1. Differentiate between SN1 and SN2 mechanism .
2. Give the R-S Configuration of Lactic Acid
3. Discuss Nucleophilic & Electrophilic Substitution in Haloarenes
4. Write the Structure of DDT . What is it's effect on environment .
5. Explain Finkelstein & Swarts Reaction
6. Explain Markownikoff & Saytzeff's Rules
7. Write Short Note on Sandmeyers Reaction

## Alcohols , Phenols and Ethers

1. Explain preparation of Alcohols from Grignard Reagent
2. What is Hydroboration - Oxidation Reaction ?
3. Explain properties of Alcohols based on Intermolecular hydrogen bonding .
4. Write Short Note on Oxidation of primary , scondary and Tertiary Alcohols .
5. Write Short Note on Dow Process .
6. What is Raschig Method ?
7. What is the Commercial Method of Preparation of Phenols ? (From Cumene)
8. Explain : Acidity of Phenols
9. Explain : Kolbe's Reaction
10. Write a short note on Riemer - Tiemann Reaction
11. What is the distinguishing test between alcohols & phenols ?
12. What is Metamerism ?
13. Write Short Note on Williamson's Synthesis .
14. Explain limitations of the three methods of prepartions of Ethers .
15. What is the action of cold and hot HI on ethers ? Explain .
16. Write Short Note on Crown Ethers

## Aldhydes , Ketones and Carboxylic Acids

1. Explain the structure of Carbonyl Functional Group .
2. What is Dry Distillation of Calcium Salts ?
3. Explain Etard Reaction
4. What is Gatterman - Koch Formylation ?
5. Explain Rosenmund Reaction
6. How to obtain Ketones from dialkylcadmium ?
7. What is the action of Alcohol on Aldehydes and Ketones ?
8. Prepare Cyclic Ketal
9. What happens on addition of Ammonia to a) Formaldehyde b) Acetaldehyde c) Acetone ?
10. What is Clemmensen Reduction ?
11. What is Wolf-Kishner Reduction ?
12. What is the action of the following on Carbonyl Group : a) Amines b)Oximes c) Hydrazine d) Semicarbazide.?
13. Explain Reducing property of Aldehydes on the basis of Fehling Solution , Tollen's Reagent and Schiff Reagent .
14. Give Haloform Reaction with Examples .
15. Explain Aldol Condensation .
16. Explain Cannizzaro Reaction
17. Prepare Carboxylic Acid from dry ice .
18. Explain Acidic properties of Carboxylic Acids .
19. Explain effect of Substituent on Acidity of Carboxylic Acid .
20. What is Hell-Vohlard-Zelinsky Reaction ?

## Compounds containing Nitrogen

1. Write Short Note on Nef Carbonyl Synthesis .
2. Short Note : Ammonolysis
3. Write Short Note on Gabriel phthalimide Synthesis
4. Short Note : Hoffmann Bromamide Degradation
5. Explain Basic Nature of Amines .
6. What is the action of Nitrous Acid on primary , secondary and tertiary amines ?
7. Explain Hoffmann's Exhaustive Alkylation .
8. Explain Hoffmann Elimination .
9. What is Hoffmann's Carbylamine Test ?
10. What is Hinsberg's Test ?
11. Prepare diazonium salt from Aniline .
12. What is Gattermann Reation ?
13. Explain : Balz-Schiemann Reaction

## Biomolecules

1. What are Carbohydrates ?
2. What are reducing and non reducing sugars ?
3. What are the 2 methods of preparation of Glucose ?
4. What is the action of HNO3 and Bromine Water on Glucose ?
5. Explain : Cyclic Structure of Glucose .
6. Explain Cyclic Structure of Fructose .
7. What are proteins ?
8. What is Zwitter Ion ?
9. Giv the classification of Amino Acids
10. Distinguish between SImple and COmplex Lipids .
11. What are Nucleic Acids ? Give structures of Ribose and seoxyribose