CBSE Lab Manual Practical Manual Chemistry for Class 11

• Sahitya Bhawan Lab Manual with theory, Viva-voce Questions and Laboratory instruction for class 9, 10, 11, 12 has been prepared in accordance with the NCERT, CBSE, UP Board and other state boards syllabus.
• Practical book provides a better understanding of various concepts in a lucid manner.
• The entire matter is prepared in a way that it provides complete understanding of each topic.
• Viva-voice questions and answers helps the students in having a better understanding of concepts.
• Viva Voce questions are followed with answers.After theory matter, blank pages are provided for writing experiments.
• Lab Manual series contains Science, Mathematics, Social Science, Physics, Chemistry, Biology, Physical Education

Contents

Chemistry Laboratory : An Introduction Commonly Used Laboratory Apparatus

• Viva Voce Questions with Answers
• 1. Basic Laboratory Techniques

EXPERIMENT

• 1.1 To cut a glass tube or glass rod of a desired length and round of its edges.

EXPERIMENT

• 1.2 To bend a glass tube or glass rod.

EXPERIMENT

• 1.3 To draw a glass jet from the glass tube.

EXPERIMENT

• 1.4 To bore a hole in a cork and insert a glass tube into a bored cork .
• Viva Voce Questions with Answers

2. Characterisation and Purification of Chemical Substances

• experiment 2.1 To determine the melting point of the given organic compound.
• experiment 2.2 To determine the boiling point of the given organic liquid.
• experiment 2.3 To prepare crystals of pure potash alum from impure sample.
• experiment 2.4 To prepare crystals of pure copper sulphate (CuSO4.5H2O) from given impure sample.
• experiment 2.5 To prepare the crystals of pure benzoic acid from given impure sample.
• Viva Voce Questions with Answers

3. Experiments Based onpH

• experiment 3.1 To determine the pH of vegetables and fruit juices, acids and bases of known and varied concentration using pH paper.
• experiment 3.2 Compare the pH of solution of strong acid and weak acid having same concentration
• experiment 3.3 Study the pH change in the titration of a strong base with strong acid using universal indicator.
• experiment 3.4 Study of pH change by common ion effect in case of weak acid and weak base.(1) To study the change in pH of acetic acid solution by addition of sodium acetate(2) To study the change in pH of ammonium hydroxide solution by the addition of ammonium chloride Viva Voce Questions with Answers

4. Chemical Equilibrium

• experiment 4.1 To study the shift in equilibrium between ferric ions and thiocyanate ions by incre-asing the concentration of either of the ions.
• experiment 4.2 To study the shift in equilbirium between [Co(H2O)6]2+ and Cl by changing the conc-entration of either of the ions.
• Viva Voce Questions with Answers
• 5. Quantitatixe Estimation
• experiment 5.1 Prepare M/10 sodium carbonate solution.
• experiment 5.2 Prepare M/10 oxalic acid solution.
• experiment 5.3 Determine the strength of the given sodium hydroxide solution.
• experiment 5.4 Determine the strength and molarity of the given solution of hydrochloric acid by titratingit against standard sodium carbonate solution.Viva Voce Questions with Answers

6. Qualitative Analysis

• Detection of Elements in Organic Compounds Viva Voce Questions with Answers Investigatory PROJECTS Project 1 To check the bacterial contamination in drinking water by testing sulphide ions.
• Viva Voce Questions with Answers Project 2 To study the methods of purification of water.Viva Voce Questions with Answers Project 3 To test the hardness, presence of ions, chloride, flouride, etc.
• depending upon regional variation in drinking water and to study the cause of presence of these ions.
• Viva Voce Questions with Answers Project 4 Investigation of the foaming capacity of different washing soaps and the effect of addition of sodium carbonate on them.
• experiment 1 To compare the foaming capacities of five different commercial soaps.
• experiment 2 Study the effect of the addition of Sodium Carbonate (washing soda) on the foaming capacity of different soap solutions.Viva Voce Questions with Answers Project 5 To study the acidity of different samples of tea leaves as an index of their tastes.Viva Voce Questions with Answers Project 6 This project is of the Rate of evaporation of different liquid, in which we also discuss the factors which affect the rate of liquid.
• experiment 1 To compare the rates of evaporation of acetone, benzene and chloroform.
• experiment 2 To study the effect of surface area on the rate of evaporation of diethyl ether.
• experiment 3 To study the effect of temperature on the rate of evaporation of acetone.
• experiment 4 To study the effect of air current on the rate of evaporation of acetone.
• Viva Voce Questions with Answers Project 7 Project report effects of acids and bases on the tensile strength of fibres
• experiment 1 Compare the tensile strength of given samples of nylon and cotton fibres.
• experiment 2 To investigate the effect of acids and alkalis on the tensile strength of these fibres.
• Viva Voce Questions with Answers Project 8 To analyse fruit and vegetable juices for their acidity.
• Viva Voce Questions with Answers”

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