1. Explain the following termswith suitable examples: (i) Schottky defect (ii) Frenkeldefect (iii) Interstitials and (iv) F-centres. 2. Aluminium crystallises …
Chemistry:XII-Mock Test for Board Exams
Click here for “Exam Preparations” for Class-12 1.The electric resistance of a column of 0.05M NaOH soln of diameter 1cm & length 50 cm …
Chemistry:XII-Mock Test for Board Exams
1.The electric resistance of a column of 0.05M NaOH soln of diameter 1cm & length 50 cm is 5.55X103 ohm. …
Alcohol & Phenols : Full Chapter
Students as your exams of class 12th are here. You have given your maximum for these examinations. Till now most …
Inorganic Chemistry: Important Questions
For Class 12 Exam Preparation in 1-Month , click here. Inorganic chemistry of class 12th consist of mainly three chapters …
Biomolecule : Notes & Important Questions & Answers
Click here for class 12 Board exams preparation Chapter biomolecules is a very interesting chapter for class 11th and 12th …
Polymers: Important Questions
1.What is BuNa – N ? 2.What is the monomer of Nylon – 6 . Give its method of prepration? …
Mock Test:1 , Chemistry
For 1-Month Online course Click here Section-A(1-Mark) 1. Why is it essential to wash the precipitate with water before estimating it …
Extraction : Very Important Questions.
Click Here for Videos of “Extraction” 1. What is the significance of leaching in theextraction of aluminium? 2. Is it …
Very Important Questions : Haloalkanes & Haloarenes
Note: Click here for all Videos of “HALOALKANES & HALOARENES” 1.Why is sulphuric acid not used during the reaction of …