CBSE Class 11 Chemistry Lab Manual

  1. Introduction
  2. Basic Laboratory Techniques
    1. Viva Questions With Answers
  3. Determination of Melting point
    1. Viva Questions with Answers on  Determination of Melting point
  4. Determination of Boiling point
    1. Viva Questions with Answers on  Determination of Boiling point
  5. Purification of Chemical Substances by Crystallisation
    1. To Prepare Crystals of Pure Copper Sulphate (CuSO_{4}.5H_{2}O)  from a given impure sample of the blue vitriol
    2. To Prepare Crystals of Potash alum ({K_2}S{O_4}.A{l_2}{(S{O_4})_3}.24{H_2}O)  from the crude sample
    3. To purify impure sample of benzoic acid  by the process of  crystallisation
    4. Viva Questions with Answers on  Purification of Chemical Substances by Crystallisation
  6. Experiments Based On pH Change
    1. Determine the pH values of hydrochloric acid  at different  strengths using; (i) pH papers and (ii) universal  indicator solution
    2. To determine the pH of various samples of NaOH solution  using: (i) pH paper, and (ii) universal indicator solution
    3. Determine the pH of solutions of some salts using pH  paper or universal indicator
    4. Determine the pH of  vegetable and fruit juices using pH  paper and universal indicator
    5. Compare the pH of solutions of hydrochloric acid and acetic acid having same concentration
    6. Study the pH change in the titration of  \frac{M}{10} HCl with  \frac{M}{10}NaOH  using universal indicator
    7. (a)  To study the change in pH of acetic acid (a weak acid) solution by addition of sodium acetate (b)  To study the change in pH of ammonium hydroxide (a weak base) solution by the addition of ammonium chloride
    8. Viva Questions with Answers on  Experiments Based On pH Change
  7. Effect of Change of Concentration on Chemical Equilibrium
    1. To study the shift of equilibrium between ferric ions and thiocyanate ions by increasing the concentration of either of them
    2. Viva Questions with Answers on  Effect of Change of Concentration on Chemical Equilibrium
  8. Quantitative Estimation (Volumetric Analysis)
    1. Prepare \frac{M}{10}    sodium carbonate solution
    2. Prepare \frac{M}{10}  oxalic acid solution
    3. Prepare 250 ml of 5N HCl  from the given 12N HCl
    4. Prepare 250 ml of 2M H_{2}SO_{4}  from the given 18M H_{2}SO_{4}
    5. Determine the strength of the given sodium hydroxide  solution. You are provided with   \frac{M}{20}  oxalic acid solution
    6. Determine the strength and molarity of the given solution of hydrochloric acid. Given is 0.05 M  Na_{2}CO_{3} solution
    7. The given solution contains 6.3 g of hydrated oxalic acid,hydrated oxalic acid
      crystals per litre. Determine the value of n(no. of molecules of water of crystallisation). Provided 0.1 M  NaOH
    8. Determine volumetrically, the value of ‘n’ i.e., the number of water molecules of crystallisation in washing soda  Na_{2}CO_{3}.nH_{2}O,  7.0 g of which have been dissolved per  litre of the given solution. Provided  \frac{M}{10} HCl
    9. You are provided with the solution of a hydrogen carbonate of a monovalent alkali metal (M) with strength equal to 10.0 gms per litre. Find out the atomic mass of the metal (M).
    10. Viva Questions with Answers on  Quantitative Estimation (Volumetric Analysis)
  9. Qualitative Analysis
    1. To analyse the given salt for acidic and basic radicals
    2. Viva Questions with Answers on  Qualitative Analysis
  10. Detection of Elements in Organic Compounds
    1. Viva Questions with Answers on  Detection of Elements in Organic Compounds