1. State and explain first law of thermodynamics. Starting from first law of thermodynamics, derive the relationship, dH= dE + dW , where the letters have their usual meanings.
2. State and explain Hess’s law of constant heat summation. Write it’s one important application.
3. Draw energy profile diagram for both exothermic and endothermic reaction.
4.What is normality ?How is it related with molarity ?
5.Define :I )Binormal solution ii)Seminormal solution iii)Molarity
6. Write short note on law of chemical equivalence
7.What volume of water should be added to 500ml of 2N Na2CO3 to make it exactly N/10 ?
8. 100 ml of 0.1 M NaOH is treated against 0.1 M HCl taken in the brunette. What is the Molarity of the resulting solution when the alkali is half neutralized. Also find the concentration of the salt in mole/litre.
9.Write about the separation of 1 degree, 2 degree and 3 degree amines by Hoffmann’s method.
9.What are amines ? How are they classified ?
10.Write an example of a) Carbylamine reaction b)Mendius reaction
11.Explain the laboratory preparation of ethoxyethane.
12.How can you prepare ethoxyethane from a)Ethanol b) Chloroethane
13.How is ethanamine prepared from a)Propanamide n) Nitroethane
14.Why alkyl amine is more basic than ammonia ?
15. An antaacid tablet containing CaCO3 as an active ingredient requires 22.6 ml of 0.0932 M HCl for complete neutralization .What mass of CaCO3 did the tablet contain ?
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