Skip to main content

Test Page

Test Videos

 

Popular posts from this blog

Purification Characterisation of Organic Compounds class 11

  Purification  Characterisation of Organic Compounds  name of the chapter:  Purification  Characterisation of Organic Compounds  Content Provider: FIITJEE Lecturer from FIITJEE simple notes: Organic compounds extracted from a natural source or synthesized in the laboratory require purification. Various methods are used for purification and are based on the nature of the compound and the impurity present in it. The purity of a compound is ascertained by determining its melting point or boiling point or by chromatographic and spectroscopic techniques. Fraction distillation  can be defined as a process where the separation of a mixture takes place. A mixture of various components such as chemical components can be easily vaporized by heating them to a temperature more than their boiling point and forming different fractions. embedded pdf:
Post a Comment
Read more

acids bases and salts pptx

 Acids Bases and Salts PPT   name of the chapter:       acids bases and salts Content Provider:            Student ( Dharani ) Acid Bases and Salts introduction by NCERT : You already know that acids are sour in taste and change the colour of blue litmus to red, whereas, bases are bitter and change the colour of the red litmus to blue. Litmus is a natural indicator, turmeric is another such indicator. Have you noticed that a stain of curry on a white cloth becomes reddish-brown when soap, which is basic in nature, is scrubbed on it? It turns yellow again when the cloth is washed with plenty of water. You can also use synthetic indicators such as methyl orange and phenolphthalein to test for acids and bases. In this chapter, we will study the reactions of acids and bases, how acids and bases cancel out each other’s effects and are much more interesting things that we use and see in our day-to-day life. Do Y...
Post a Comment
Read more

Chemical Kinetics class 12

Chemical Kinetics  name of the chapter: Chemical Kinetics Content Provider: FIITJEE Lecturer from FIITJEE Introduction based on NCERT: Chemistry, by its very nature, is concerned with change. Substances with well-defined properties are converted by chemical reactions into other substances with different properties. For any chemical reaction, chemists try to find out (a) the feasibility of a chemical reaction which can be predicted by thermodynamics ( as you know that a reaction with ΔG < 0, at constant temperature and pressure is feasible); (b) the extent to which a reaction will proceed can be determined from chemical equilibrium; (c) speed of a reaction i.e. time taken by a reaction to reach equilibrium. Along with feasibility and extent, it is equally important to know the rate and the factors controlling the rate of a chemical reaction for its complete understanding. For example, which parameters determine how rapidly food gets spoiled? How to design a rapid...
Post a Comment
Read more