List of things to memorise for O Level Chemistry.


1Chemical structures
2Substances that can sublime
3Purification method
4Gas collection method
5Gas drying method
6Mol calculation formula
7polyatomic ions
8Inorganic reaction pattern
9Solubility table
10strong acids and bases
11indicators for titration
12Reacitivity series
13Types of oxides
14Preparation of salt
15Qualitative Analysis
16Colour of compounds
17Factors affecting speed of reaction
18Reaction in the blast furnace
19Half equation in electrolysis
20Fractional distillation of crude oil
21Number of carbons
22Organic reactions
23Condensation polymers


List 1Chemical structures
1Giant Ionic Lattice
2Giant Metallic Lattice
3Giant Covalent
4Simple Covalent


List 2Substances that can sublime
1ammonium chloride
2naphtalene
3carbon dioxide
4iodine


List 3Purification method
1Distillation
2Fractional Distillation
3Chromatography
4Crystalisation
5Filtration
6Evaporation
7Separating Funnel


List 4Gas collection method
1Upward Delivery
2Downward Delivery
3Water displacement
4syringe


List 5Gas drying method
1conc sulfuric acid for acidic gases
2calcium oxide for alkaline gases
3copper (II) sulfate for neutral gases


List 6Mol calculation formula
1mass
2NOP
3volume of gas
4concentration
5percentage yield
6percentage purity


List 7polyatomic ions
1sulfite
2sulfate
3nitrite
4nitrate
5phosphite
6phosphate
7carbonate
8hydroxide
9cyanide
10ammonium
11permanganate
12dichromate
13thiosulfate


List 8Inorganic reaction pattern
1acid + base
2acid + carbonate
3acid + metal
4ammonium + base
5ppt
6ppt
7displacement of metals
8displacement of halogens
9combustion
10thermal decomposition


List 9Solubility table
1all nitrate are soluble
2all sulfate are soluble except for Barium Calcium Lead
3all chlorides are soluble except for Silver Lead
4all carbonates are insoluble except for Sodium Potassium Ammonium


List 10strong acids and bases
1hydrochloric acid
2hydrogen bromide
3hydrogen iodide
4sulfuric acid
5nitric acid
6hydrogen chromate
7hydrogen perchromate
8hydrogen perbromate
9lithium hydroxide
10sodium hydroxide
11potassium hydroxide
12rubidium hydroxide
13caesium hydroxide
14francium hydroxide


List 11indicators for titration
1methyl orange
2bromotymol blue
3phenophtalein


List 12Reacitivity series
1potassium
2sodium
3calcium
4magnesium
5aluminium
6zinc
7iron
8tin
9lead
10hydrogen
11copper
12mercury
13silver
14gold
15platinum


List 13Types of oxides
1acidic oxide = non metal oxide
2basic oxide = metal oxide
3amphoteric oxide
4neutral oxide


List 14Preparation of salt
1titration
2precipitation
3excess solid


List 15Qualitative Analysis
1ammonia
2chlorine
3hydrogen
4oxygen
5carbon dioxide
6sulfur dioxide
7water vapour
8hydroxide
9nitrate
10carbonate
11sulfate
12chloride
13iodide
14hydrogen
15ammonium
16iron (II)
17iron (III)
18copper (II)
19calcium
20zinc
21aluminium
22lead


List 16Colour of compounds-
1Barium sulfatewhite
2silver chloridewhite
3lead (II) iodideyellow
4iodinepurple / black
5brominebrown
6chlorineyellowish green
7flourineyellow
8potassium permanganatepurple
9potassium dicrhomateorange
10iron (II) hydroxidegreen ppt
11iron (III) hydroxidereddish brown ppt
12copper (II) hydroxide blue ppt
13copper (II) oxideblack ppt
14anhydrous copper (II) sulfatewhite powder
15hydrated copper (II) sulfateblue crystal
16copper (II) carbonategreen ppt
17copperpink


List 17Factors affecting speed of reaction-
1temperatures,l,g,aq
2catalysts,l,g,aq
3particle sizesolid
4pressuregas
5concentrationaqueous


List 20Fractional distillation of crude oil
1LPG
2petrol
3Naphta
4kerosene
5Diesel
6Lubricating oil
7Fuel oil
8Grease / Wax
9Bitumen


List 21Number of carbons
1meth-
2eth-
3prop-
4but-
5pent-
6hex-
7hept-
8oct-
9non-
10dec-


List 22Organic reactions
1cracking
2hydrogenation
3hydration
4dehydration
5oxidation
6reduction
7esterification
8hydrolysis
9free radical substitution
10bromination
11addition polymerisation
12combustion
13fermentation


List 23Condensation polymers
1synthetic polyester - Terylene
2natural polyester - fats
3synthetic polyamide - nylon
4natural polyamide - protein