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Rate Chemical Reaction and Chemical Equilibrium

Q. 1. What do you understand by the rate of reaction?

Q. 2. What id average reaction rate and instantaneous rate? Explain with suitable example.

Q. 3. Define malarity. What is solution?

Q. 4. Write the types of chemical reaction on the basis of energy changes and explain.

Q. 5. Explain in details with examples the reversible and irreversible reaction.

Q. 6. What are strong and weak electrolytes?

Q. 7. How is strength of acids and bases expressed?

Q. 8. Find the strength of 0.1 MCH3CODH, when it is 40% ionised in aqneons
Solution. [0.04m/litre]

Q. 9. Describe ionic product of water.

Q. 10. Find the ph of the following solutions:

1. 0.001 m Hcl solutio
2. 0.002 m NaOH solution

Ans: (i) 3 (ii) 11.3010

Q. 11. State some chemical reactions where energy production is important than products.

Q. 12. Write chemical compounds other than fuels which produce heat energy.

Q. 13. Classify the following acids and bases in the categories of weak and strong.
(i) Hcl (ii) HCN (iii) HNO3 (iv) NaOH (v) H2SO4
(vi) HClO4 (vii) Ca(OH)2 (viii) H3PO4 (ix) CH3COOH (x) NH4OH

Q. 14. Find the ph of solutions if the acids are fully dissociated
(i) 0.01 m Hcl (ii) 0.05 m H2SO4
Ans: (i) 2 (ii) 1

Q. 15. Classify the following into strong and weak electrolytes on the basis of their behaviour in aqueous

1. Nacl
2. NH4Cl
3. CH3COOH
4. HCN
5. NaOH
6. NH4OH

Q. 16. Calculate ph of the solution when hydrogen ion concentration is

1. 1.0 X 10^-7m
2. 1.0 X10^-9m
   

Ans: (i) 7 (ii) 9

Q. 17. Write the preparation and uses of sodium bicarbonate.

Q. 18. Write the composition of baking powder. What is use of tartaric acid in baking powder?

Q. 19. Write preparation, properties and uses of bleaching powder.

Q. 20. How line is prepared at large scale? Write its properties and uses.

Q. 21. What is glass? How soda glass is prepared?

Q. 22. Name different types of glasses. How the following glasses are prepared?

Q. 23. How is coloured glass produced? Write the uses of glass fibre.

Q. 24. What is steel? How is it prepared? Write the uses of different types of steel.

Q. 25. What do you understand by (i) quenching of steel (ii) annealing of steel?

Q. 26. What happens when.

1. Bleaching powder is exposed to air
2. Lime stone is heated.
3. Water is added to lime.
4. Chlorine gass is passed over slacked lime for a longer period

1. Rate Chemical Reaction and Chemical Equilibrium
2. Sources of Energy
3. Nuclear Fission and Fusion
4. Metals and Non-metals
5. Carbon Compounds
6. Light: Reflection and Refraction.
7. Electricity and Its Heating and Chemical Effect
8. Magnetic Effects of Electric Current
9. The Universe
10. Nutrition and Respiration.
11. Transportation and Excretion.
12. Control and Coordination
13. Reproduction
14. Heredity and Evolution
15. Environment and Environmental Problems