Blood Group Testing Equipments and Serums

Molecular Mass of Benzene

• The molecular mass of benzene (C6H6) is 78 (C=12, H=1)

Cations

• AI3+ is an example of a cation

Hydrocarbon Types

• Alkane: a hydrocarbon that contains only single bonds
• Alkene and Alkyne are not the same as Alkane
• Aromatic: a type of hydrocarbon that contains a benzene ring
• Benzene (C6H6) is an example of an aromatic hydrocarbon

Combustion Reaction

• Combustion is the reaction that occurs when hydrocarbons burn in the presence of oxygen

Oxidation of Ethene

• When Ethene is oxidized by potassium permanganate, the product formed is Ethane 1,2-diol

Colour Change with Potassium Permanganate

• A positive reaction with potassium permanganate is indicated by a colour change from purple to colourless

General Formula for Alkanes

• The general formula for alkanes is CnH2n+2

Properties of Nonpolar Substances

• Nonpolar substances like hydrocarbons have low vapor pressure and are insoluble in water
• They are also denser than water

Addition Reaction

• Addition reaction is characteristic of alkenes and alkynes

Reaction with Potassium Permanganate

• Unsaturated hydrocarbons like Ethene react with potassium permanganate
• Benzene does not react with potassium permanganate

Reaction with Bromine

• Unsaturated hydrocarbons like Cyclohexene decolorize bromine solution in carbon tetrachloride
• Benzene does not decolorize bromine solution in carbon tetrachloride
• Toluene reacts with bromine in the presence of a catalyst like iron filings or aluminum chloride