Unit 4 Organic Chemistry Paper 1 Questions 2024

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What is Organic Chemistry?

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Organic Chemistry is the branch of chemistry that deals with the study of the structure, properties, composition, reactions, and preparation of carbon-containing compounds.

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Define Hydrocarbon.

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Hydrocarbons are organic compounds consisting entirely of hydrogen and carbon. They can be classified into aliphatic (alkanes, alkenes, alkynes) and aromatic hydrocarbons.

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What is the difference between saturated and unsaturated hydrocarbons?

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Saturated hydrocarbons contain only single bonds between carbon atoms (e.g., alkanes), while unsaturated hydrocarbons contain one or more double or triple bonds (e.g., alkenes and alkynes).

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What is an isomer?

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Isomers are compounds that have the same molecular formula but different structural formulas, resulting in different properties.

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Explain the term 'functional group'.

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A functional group is a specific group of atoms within a molecule that is responsible for the characteristic chemical reactions of that molecule.

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What are the main types of functional groups in organic chemistry?

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The main types of functional groups include hydroxyl (-OH), carboxyl (-COOH), amino (-NH2), and carbonyl (C=O) groups.

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What is the significance of the IUPAC naming system?

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The IUPAC naming system provides a standardized way to name organic compounds, ensuring that each compound has a unique and descriptive name.

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What is a polymer?

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A polymer is a large molecule composed of repeating structural units (monomers) connected by covalent chemical bonds. Examples include plastics and proteins.

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Define the term 'reaction mechanism'.

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A reaction mechanism is a step-by-step description of the process by which reactants are converted into products in a chemical reaction.

Front

What is the role of catalysts in organic reactions?

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Catalysts are substances that increase the rate of a chemical reaction without being consumed in the process. They lower the activation energy required for the reaction.