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Chemistry 11 part 1      Download here                 

Chemistry 11 part 2      Download here  

Class 12th 

Chemistry 12 part 1      Download here           

Chemistry 12 part 2      Download her    

               Download here Chapterwise 12th NCERT Book


Physics 12 part 1           Download here

Physics 12 part 2           Download here


Mathematics 12th part 1  Download here 

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Class 10th   

Class 9th 

The Reimer-Tiemann reaction: Reaction and its Mechanism

Reimer-Tiemann Reaction Phenols on reaction with chloroform in the presence of sodium hydroxide (or potassium hydroxide) solution give hydro...