Chemistry

• Chapter 1: Volumetric Analysis. Notes and past questions on Volumetric Analysis for NEB Class 12 Chemistry.
• Chapter 2: Ionic Equilibrium. Notes and past questions on Ionic Equilibrium for NEB Class 12 Chemistry.
• Chapter 3: Chemical Kinetics. Notes and past questions on Chemical Kinetics for NEB Class 12 Chemistry.
• Chapter 4: Chemical Thermodynamic. Notes and past questions on Chemical Thermodynamic for NEB Class 12 Chemistry.
• Chapter 5: Electrochemistry. Notes and past questions on Electrochemistry for NEB Class 12 Chemistry.
• Chapter 8: Haloalkanes. Notes and past questions on Haloalkanes for NEB Class 12 Chemistry.
• Chapter 9: Haloarenes. Notes and past questions on Haloarenes for NEB Class 12 Chemistry.
• Chapter 10: Alcohols. Notes and past questions on Alcohols for NEB Class 12 Chemistry.
• Chapter 11: Phenols. Notes and past questions on Phenols for NEB Class 12 Chemistry.
• Chapter 12: Ethers. Notes and past questions on Ethers for NEB Class 12 Chemistry.
• Chapter 13: Aldehydes and Ketones. Notes and past questions on Aldehydes and Ketones for NEB Class 12 Chemistry.
• Chapter 14: Carboxylic Acids. Notes and past questions on Carboxylic Acids for NEB Class 12 Chemistry.
• Chapter 15: Nitro Compounds. Notes and past questions on Nitro Compounds for NEB Class 12 Chemistry.
• Chapter 16: Amines. Notes and past questions on Amines for NEB Class 12 Chemistry.
• Chapter 17: Organometallic Compounds. Notes and past questions on Organometallic Compounds for NEB Class 12 Chemistry.
• Chapter 21: Nuclear Chemistry. Notes and past questions on Nuclear Chemistry for NEB Class 12 Chemistry.
• Chapter 22: Cement. Notes and past questions on Cement for NEB Class 12 Chemistry.
• Chapter 23: Chemistry in the Service to Mankind. Notes and past questions on Chemistry in the Service to Mankind for NEB Class 12 Chemistry.
• Chapter 24: Study of Heavy Metals. Notes and past questions on Study of Heavy Metals for NEB Class 12 Chemistry.
• Chapter 25: Paper and Pulp. Notes and past questions on Paper and Pulp for NEB Class 12 Chemistry.
• Chapter 26: Transition Metals. Notes and past questions on Transition Metals for NEB Class 12 Chemistry.
• Chapter 27: Copper. Notes and past questions on Copper for NEB Class 12 Chemistry.
• Chapter 28: Energetics of Chemical Reactions. Notes and past questions on Energetics of Chemical Reactions for NEB Class 12 Chemistry.
• Chapter 29: Practical Work. Notes and past questions on Practical Work for NEB Class 12 Chemistry.

• Write an example of a molecule having trigonal pyramidal geometry. What is the mode of hybridisation on central atom of the molecule? (model)
• What is titration error? How is it minimized? (model)
• Calculate the pH of 1x10^-8 M HCl. (model)
• What products would you expect at cathode and anode when aqueous NaCl is electrolysed using platinum electrodes? (model)
• Define spontaneous process and give one example of it. (model)
• Calculate the enthalpy of formation in the following reactions: i) 2H2(g) + O2(g) -> 2H2O(l), H = -136 kcal ii) H2(g) + I2(g) -> 2HI(g),... (model)
• 75% of a first order reaction is completed in 30 minutes. What time will it take to complete 50% of the reaction? (model)
• How would you convert sodium benzoate into acetophenone? (model)
• What happens when i) Benzene diazonium chloride is treated with CuCl2 in the presence of HCl ii) Chlorobenzene is heated with chloral in... (model)
• Propan-1-ol has higher boiling point than propan-2-ol though they have same molecular mass. Give reason. (model)
• Convert ethoxyethane to methoxyethane. (model)
• Identify the major product X and mention its one important use (Methanal treated with NH3 gives X). (model)
• Write an example of each of the following reactions: i) Carboxylation ii) Esterification. (model)
• Give resonance structure of nitrobenzene to show that nitro group is a meta-directing group. (model)
• Give a suitable reaction for the preparation of methanamine from ethanamide. What happens when methanamine reacts with nitrous acid at lo... (model)

Frequently asked questions

Based on the official syllabus.