Chemistry class 12th English Medium

DISTINGUISH BETWEEN PAIR Distinguish between the following pairs of compounds : 1. Propanal and Propanone :…

16. CHEMISTRY IN EVERYDAY LIFE Q. 1. With the help of example, explain how do following type of drugs functions…

15. POLYMERS TIL 1. Write the equations for the synthesis of (i) Polymethyl methacrylate (ii)…

14. BIOMOLECULES 1. What is glycogen ? How is it different from starch ? Ans⇒ Glycogen is a polysaccharide.…

13. AMINES  Q. 1. Explain the following: (i) Aniline dissolves in aqueous HCl. (ii) Amines are stronger bases…

12. ALDEHYDES. KETONES AND CARBOXYLIC ACIDS Q. 1. Explain the following and give an example: (i) Cyanohydrin…

11. ALCOHOLS, PHENOLS AND ETHERS Q. 1. Explain giving reasons : (i) Boiling point of an alcohol is higher…

10. HALOALKANES AND HALOARENES Q. 1. Give the uses of Freon 12, DDT, carbon tetrachloride and iodoform. Ans⇒…

9. CO-ORDINATION COMPOUNDS Q. 83. Write the formula for the following co ordination compounds : (i)…

8. THE D- AND f-BLOCK ELEMENTS Q. 1. What is lanthanoid contraction ? What are the consequences of lanthanoid…

7. THE p-BLOCK ELEMENTS Q. 1. Why does the reactivity of nitrogen differ from phosphorus ? Ans⇒ Nitrogen…

6. GENERAL PRINCIPLES & PROCESSES OF ISOLATION OF ELEMENTS Q. 1. Describe the prepare of Ammonia from…

Q. 1. What is the difference between physisorption and chemisorption ? Ans⇒ Physisorption : When a gas is held…

4. CHEMICAL KINETICS Q. 1. Define 'energy of activation of a reaction. How does it vary with a rise in…

3. ELECTROCHEMISTRY Q. 1. How would you determine the standard electrode potential of the system Mg2+/Mg?…

1. SOLID STATE - LONG ANSWER TYPE QUESTIONS Q. 1. How can you determine the atomic mass of an unknown metal if…

16. CHEMISTRY IN EVERYDAY LIFE Q. 1. Why do we need to classify drugs in different ways ? Ans. …

14. BIOMOLECULES Q. 1. How are vitamins classified ? Name the vitamin responsible for the coagulation of…

13. AMINES Q. 1. Alkyl Amines are stronger base than Ammonia. Ans. The inductive effect of attached…

12. ALDEHYDES, KETONES AND CARBOXYLIC ACIDS Q. 1. What is the different between addition reactions to C = C…