Something Important About Organic Chemistry Quiz

Margarine is not made from crude oil. Margarine is a spread made from vegetable oils, such as soybean, canola, or sunflower oil. It is produced through a process called hydrogenation, where the vegetable oils are transformed into a solid form. Crude oil is not used in the production of margarine. On the other hand, aircraft fuel, diesel oil, and furniture polish are all derived from crude oil.

The statement "They are renewable" is not true. Fossil fuels, such as coal, oil, and natural gas, are formed over millions of years from the remains of ancient plants and animals. Once they are depleted, they cannot be replenished within a human lifespan, making them non-renewable resources.

Bitumen contains the largest molecules among the given options. Bitumen is a highly viscous and sticky black or dark brown material that is commonly used in road construction. It is composed of complex hydrocarbon molecules with high molecular weights. These large molecules give bitumen its unique properties, such as high resistance to temperature variations and durability. In contrast, kerosene, petrol, and diesel have smaller and less complex molecules, making them more volatile and easier to ignite.

Large alkane molecules are not as useful as smaller molecules because they have limited applications. Cracking these large molecules into smaller ones allows for a greater variety of products to be made, which can meet the demand for small alkane molecules. This process is important in industries such as petrochemicals, where smaller molecules are used as feedstocks for the production of various chemicals and materials.

The boiling point of a substance is determined by the strength of its intermolecular forces. Methanol, being an alcohol, has stronger intermolecular forces compared to propane, which is an alkane. Methanol can form hydrogen bonds between its molecules, resulting in stronger attractions. Propane, on the other hand, only has induced dipole-induced dipole forces, which are weaker. Therefore, methanol requires more energy to break the intermolecular forces and transition from a liquid to a gas, resulting in a higher boiling point compared to propane.