1. ATOMIC STRUCTURE
1 MARK
1. Write the Planck's equation?
2. What is Zeeman effect?
3. What is a stationary orbit?
4. What is a nodal plane?
5. Why an electron enters into 4s but not into 3d after filling up of 3p orbital?
6. State Aufbau principle?
7. State Pauli's exclusion principle?
8. What are degenerate orbitals?
2 MARKS
1. Define Electron affinity and Ionization energy?
2. Write the electronic configurations of Cu, and Zn?
3. Draw the boundary diagrams of 's' and 'p' orbital’s?
4. Write a short notes on Principle quantum number?
4 MARKS
1. What are the important features of Rutherford's planetary model? Mention its
defects?
2. State the postulates of Bohr's model of atom? What are its defects?
3. Define ionization energy? What are the factors influencing it?
4. State and explain Aufbau principle with an example?
5. State and explain with one example the Hund's rule of maximum multiplicity?
2. CHEMICAL BOND
1 MARK
1. Write the names of two atoms having pyramidal shape?
2. Draw the shape of Ammonia (NH3)?
3. Draw the shape of Water molecule (H2O)?
2 MARKS
1. Mention the differences between σ and π bonds?
2. What is the shape of PCl5 ? Draw it?
4 MARKS
1. Discuss the types of overlaps that are possible with s and p orbital’s?
2. Explain the formation of double bond?
3. Explain the formation of Triple bond?
4. Explain the formation of Coordinate covalent bond?
3. PERIODIC CLASSIFICATION OF ELEMENTS
1 MARK
1. State Mendeleev’s periodic law?
2. Define Oxidation?
3. Define atomic radius?
4. State modern periodic law?
4 MARKS
1. How does the following properties vary in a period and a group?
a) Atomic radius b) Oxidation c) Reduction d) Electro negativity
e) Electro positivity f) Ionization energy?
2. What is Modern periodic law? Explain its main features?
4. ALKALINE EARTH METALS
1 MARK
1. Why do we add Kcl and Nacl to Mgcl2 during Mg extraction?
4 MARKS
1. Write the reactions of alkaline earth metals with a) oxygen b) Hydrogen
c) water d) chlorine?
2. Describe a method of extraction of Mg from its ore?
5 MARKS
1. Draw a neat diagram showing the extraction of Magnesium form its ore?
5. SOLUTIONS
1 MARK
1. Define Solubility?
2. Define Concentration?
3. Define mola rity ?
2 MARKS
1. 2 Moles of Sodium carbonate is dissolved in 3 moles of water. Calculate the
mole fractions of water and Sodium carbonate?
2. 20 ml of Alcohol is dissolved in 160 ml of water. What is the volume
percentage of the solution?
3. Calculate the amount of oxalic acid present in 500ml of 0.2M solution?
4 MARKS
1. Define Molarity? 2.12 gms of Na2CO3 is present in 250 ml of its aqueous
solution. Calculate the mol arity of the solution? (Molecular weight of
Na2CO3 is 106)
2. How do you prepare 0.1M standard Na2CO3 solution?
6. ACIDS BASES AND SALTS
1 MARK
1. Define PH?
2. What is the ionic product of water? What is its value at 250C?
3. Define heat of neutralization?
4. Calculate the PH of 0.001M Hcl?
4 MARKS
1. State Ahenius theory of Acids and Bases? What are its limitations?
2. Define Strong acid, Strong base, Weak acid, and weak base and give
examples?
7. CHEMISTRY OF CARBON COMPOUNDS
1 MARK
1. What is Allotropy?
2. Define catenation?
3. What is polymerization?
4. What is isomerism?
5. What are the uses of Acetylene?
2 MARKS
1. Draw the structure of Benzene?
2. Write the substitution reactions of Alkanes?
3. Differentiate between Alkanes and Alkenes?
4. Mention the uses of CO2?
4 MARKS
1. Compare the structures of diamond and graphite?
8. CARBOHYDRATES AND PROTEINS
1 MARK
1. Define calorific value?
2. What is defecation/
4. What is rectified spirit?
5. What is bagasse? How is it useful?
2 MARKS
1. Explain the formation of peptide bond?
2. What are the functions of proteins?
4 MARKS
1. How are carbohydrates classified based on their behavior towards
hydrolysis? Explain with examples?
2. How is Tollen's reagent prepared? How is glucose tested with it?
3. How is Benedict's reagent prepared? How is glucose tested with it?
4. Explain the various steps involved in manufacturing of sugar from sugar cane?
5. How is alcohol manufactured industrially?
5 MARKS
1. Draw the diagram showing the parts of sugar industry?
2. Draw a chart showing alcohol manufacture?
9. OILS AND FATS
1 MARK
1. What is the hydrogenation of oils?
2. What is the use of hydrogenation of oils?
3. What is saponification?
4. What is a soap?
2 MARKS
1. What are the industrial uses of oils?
4 MARKS
1. How do you test the quality of a soap?
10. CHEMISTRY AND INDUSTRY
1 MARK
1. What is the use of adding cullet to the raw materials of glass?
2. What are primary nutrients?
3. What is the use of Micronutrients?
4. What is annealing?
5. What is cracking?
2 MARKS
1. Draw the structures of paracetamol and aspirin?
2. What are the characteristics of a good quality of face powder?
4 MARKS
1. What is a drug? What are the qualities of an ideal drug?
2. What is a drug? How are they classified as per therapeutic action?
5 MARKS
1. Draw a neat diagram of fractionation of petroleum and label its parts?
2. Sketch the cement manufacture plant?