Ch 1.1 Oxidation and Reduction Chemistry F5 KSSM.pptx

CHAPTER 1.1 CHEMISTRY F5

1. CHEMISTRY FORM 5 KSSM REDOX EQUILIBRIUM

2. 9.0 REDOX EQUILIBRIUM 9.1 OXIDATION AND REDUCTION 9.2 STANDARD ELECTRODE POTENTIAL 9.3 VOLTAIC CELL 9.4 ELECTROLYTIC CELL 9.5 EXTRACTION METAL FROM ITS ORE 9.6 RUSTING

3. PREPARED BY: NURULKAMILAH BINTI KHAIRIR 9.1 OXIDATION AND REDUCTION

4. Learning Standard Pupils are able to: 1.1.1 Describe redox reactions through activities 1.1.2 Explain redox reaction based on the change in oxidation number through activities 1.1.3 Investigate displacement reaction as a redox reaction through activities SELF CHECKLIST

5. What is meant by a redox reaction? A redox reaction is a chemical reaction where oxidation and reduction occur simultaneously

6. Redox in Terms of Gain and Loss of Oxygen

7. ACTIVITY 1A Page 5 Chemistry Form 5 KSSM Text Book

8. C + 2CuO  CO 2 + 2Cu Carbon, C gains oxygen Copper(II) oxide, CuO loses oxygen Copper(II) oxide, CuO oxidises carbon, C Carbon, C reduces copper(II) oxide, CuO Carbon, C Copper(II) oxide, CuO Copper(II) oxide, CuO Carbon, C

9. Redox in Terms of Gain and Loss of Hydrogen

10. ACTIVITY 1B Page 6 Chemistry Form 5 KSSM Text Book

11. 2NH 3 + 3CuO  N 2 + 3Cu + 3H 2 O Ammonia, NH 3 Copper(II) oxide, CuO Copper(II) oxide, CuO Ammonia, NH 3 Ammonia, NH 3 loses hydrogen Copper(II) oxide, CuO loses oxygen Copper(II) oxide, CuO undergoes reduction Ammonia, NH 3 undergoes oxidation

12. Redox in Terms of Electron Transfer

13. 2Mg + O 2  2MgO

14. LABORATORY ACTIVITY 1A Page 7 Chemistry Form 5 KSSM Text Book

15. Redox in Terms of Change in Oxidation number

16. ACTIVITY 1C Page 11 Chemistry Form 5 KSSM Text Book

17. Determination of Oxidation Number

18. ACTIVITY 1D Page 13 Chemistry Form 5 KSSM Text Book

19. The Oxidation Number and Naming of Compounds According to the IUPAC Nomenclature

20. ACTIVITY 1E Page 14 Chemistry Form 5 KSSM Text Book

21. Exercise A Manganese(IV) oxide Iron(II) nitrate Nickel(II) sulphate Potassium iodate(V) Phosphorus(V) oxide Nitrogen(IV) oxide Manganese(II) chloride Dichromium(III) oxide Copper(II) sulphate Copper(II) carbonate Silver chloride Sodium phosphate(V)

22. Exercise B BaSO 4 Ag 2 Cr 2 O 7 CuSO 4 Fe(OH) 3 NaNO 3 PbSO 4 PbCl 2 Fe 2 O 3

23. LABORATORY ACTIVITY 1B Page 15 Chemistry Form 5 KSSM Text Book

24. Result

25. Discussion

26. Displacement Reaction of Metal from Its Salt Solution

27. Electropositivity and electrochemical series Electropositivity is the tendency of atoms to release electrons to form cation Electrochemical series is a series of metal arrangements according to the standard electrode potential, E in the order of most negative to most positive

28. Displacement of Metal Reaction

29. LABORATORY ACTIVITY 1C Page 18 Chemistry Form 5 KSSM Text Book

30. https://bit.ly/kpkt5v6

31. Procedure:

32. Result:

33. Displacement Reaction of Halogen from Its Halide Solution

34. Mind Challenge

35. LABORATORY ACTIVITY 1D Page 20 Chemistry Form 5 KSSM Text Book

36. https://bit.ly/kpkt5v7

37. Colour of halogen in water and 1,1,1-trichloroethane, CH 3 CCl 3 Halogen Conc. aqueous solution Dilute aqueous solution Chlorine Greenish-yellow Colourless Bromine Brown Yellow Iodine Brown Yellow Halogen 1,1,1-trichloroethane, CH 3 CCl 3 Chlorine Colourless Bromine Brown Iodine Purple

38. Halogen Potassium chloride Potassium bromide Potassium iodide Chlorine Aq layer: Yellow/Brown CH 3 CCl 3 layer: Brown BROMINE FORMED Aq layer: Yellow/Brown CH 3 CCl 3 layer: Purple IODINE FORMED Bromine Aq layer: Yellow/Brown CH 3 CCl 3 layer: Brown NO REACTION Aq layer: Yellow/Brown CH 3 CCl 3 layer: Purple IODINE FORMED Iodine Aq layer: Yellow/Brown CH 3 CCl 3 layer: Purple NO REACTION Aq layer: Yellow/Brown CH 3 CCl 3 layer: Purple NO REACTION Halogen Potassium chloride Potassium bromide Potassium iodide Chlorine 2KBr + Cl 2  2KCl + Br 2 2KI + Cl 2  2KI + Cl 2 Bromine 2KCl + Br 2  No change 2KI + Br 2  2KI + Br 2 Iodine 2KCl + I 2  No change 2KBr + I 2  No change

39. Yellow / Brown Yellow / Brown Brown Purple Yellow / Brown Brown Yellow / Brown Purple Yellow / Brown Purple Yellow / Brown Purple

40. SELF ASSESS 1.1 Page 21 Chemistry Form 5 KSSM Text Book

41. Self Assess 1.1

42. Thank you Prepared by: Puan Nurulkamilah binti Khairir