NCERT Class 11 Chemistry Lab Manual Titrimetric Analysis
TITRIMETRIC ANALYSIS You are already aware that a substance is analysed to establish its qualitative and quantitative chemical composition. Thus, chemical analysis can be categorised as qualitative analysis and…
NCERT Class 11 Chemistry Lab Manual Systematics Qualitative Analysis
SYSTEMATIC QUALITATIVE ANALYSIS Analysis always does not mean breaking of substance into its ultimate constituents. Finding out the nature of substance and identity of its constituents is also analysis and is known…
NCERT Class 11 Chemistry Lab Manual Purification and Criteria of Purity
PURIFICATION AND CRITERIA OF PURITY For the identification of a compound, qualitative analysis of pure substance is required. Therefore, first we have to purify the substance and then check its purity. There are many techniques…
NCERT Class 11 Chemistry Lab Manual ph and ph change in Aqueous Solutions
PH AND PH CHANGE IN AQUEOUS SOLUTIONS You have already performed experiments on dynamic equilibrium between unionised salt and the ions produced by it on dissolving in a solvent. In this unit we will learn about shift…
NCERT Class 11 Chemistry Lab Manual Introduction
INTRODUCTION L ABORATORY work has special importance in the learning of science as scientific principles develop and grow on the basis of laboratory work. Chemistry is an experimental science; the concepts learned in the theory classes are better understood through…
NCERT Class 11 Chemistry Lab Manual Information about Investigatory Projects
BACKGROUND INFORMATION ABOUT INVESTIGATORY PROJECTS INTRODUCTION The expansion of scientific knowledge and consequently the change in the system of education has led to a modification in the methods of instruction. Today the stress is laid on inquiry approach and discussion…
NCERT Class 11 Chemistry Lab Manual Chemical Equilibrium Ionic Equilibrium
Question. At 298 K, the solubility product of PbCl2 is 1.0 x 10−6. What will be the solubility of PbCl2 in moles/litre a. 3 6.3 10× − b. 3 1.0 10× − c. 3 3.0 10× − d. 14 4.6 10× − Answer : A Question. The solubility of BaSO4 in water is 2.33×10–3 gm/litre. Its …
NCERT Class 11 Chemistry Lab Manual Basic Laboratory Techniques
BASIC LABORATORY TECHNIQUES The laboratory apparatus for carrying out reactions, in general, is made up of glass. It is because glass is resistant to the action of most of the chemicals. Generally, two types…