Step 1: Understand what alkenes are. Alkenes are hydrocarbons that contain at least one carbon-carbon double bond.
Step 2: Learn about isomerism. Isomerism is when two or more compounds have the same molecular formula but different structures or arrangements.
Step 3: Identify the type of isomerism in alkenes. Alkenes can show geometric isomerism, which is a type of stereoisomerism.
Step 4: Know why geometric isomerism occurs. Geometric isomerism happens because the double bond between carbon atoms prevents them from rotating freely.
Step 5: Recognize the two forms of geometric isomers. The two forms are called 'cis' (same side) and 'trans' (opposite sides) based on the position of substituents around the double bond.
