5. Identify the group of organic compounds that contain each of the following groups: 5.1 Hydroxyl group bonded to a carbon chain. 5.2 Carbon-carbon double bond. 5.3 Carbonyl group bonded to a H-atom at the end of a carbon chain. 5.4 One or more halogen atoms bonded to C-atoms.

Let's identify the groups of organic compounds based on the functional groups mentioned: 5.1 **Hydroxyl group bonded to a carbon chain**: - This group of organic compounds is known as **alcohols**. The hydroxyl group (-OH) is characteristic of alcohols, and they can be classified as primary, secondary, or tertiary based on the carbon to which the hydroxyl group is attached. 5.2 **Carbon-carbon double bond**: - Organic compounds that contain a carbon-carbon double bond are called **alkenes**. The general formula for alkenes is CₙH₂ₙ, where n is the number of carbon atoms. 5.3 **Carbonyl group bonded to a H-atom at the end of a carbon chain**: - This describes **aldehydes**. The carbonyl group (C=O) is located at the end of the carbon chain, and it is bonded to at least one hydrogen atom. 5.4 **One or more halogen atoms bonded to C-atoms**: - Organic compounds that contain one or more halogen atoms (such as fluorine, chlorine, bromine, or iodine) bonded to carbon atoms are known as **haloalkanes** (or alkyl halides). These compounds can be classified based on the number of halogen atoms and their positions on the carbon chain. In summary: - 5.1: Alcohols - 5.2: Alkenes - 5.3: Aldehydes - 5.4: Haloalkanes