Interesting Quiz On CFC Test

Explanation
CFCs, or chlorofluorocarbons, are a type of synthetic organic compound that contain chlorine, fluorine, and carbon atoms. They were commonly used in aerosol propellants, refrigerants, and solvents. Butane, ethane, propane, and methane are all hydrocarbons, meaning they only contain carbon and hydrogen atoms. CFCs are not derivatives of these hydrocarbons, so the correct answer is Butane.

Explanation
Dichlorodifluoromethane is the most common representative of Freon. Freon is a brand name for a group of chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) that were widely used as refrigerants and propellants. Dichlorodifluoromethane, also known as CFC-12 or R-12, was one of the most commonly used CFCs. It has a chemical formula of CCl2F2 and was widely used in air conditioning and refrigeration systems until it was phased out due to its harmful effects on the ozone layer.

Explanation
CFCs, or chlorofluorocarbons, are not used in the production of liquid soap. CFCs are primarily used as refrigerants, propellants, and in aerosol products. They were commonly used in these products in the past, but their use has been greatly reduced due to their harmful effects on the ozone layer. Therefore, the correct answer is not liquid soap.

Explanation
The boiling point of methane on the Celsius scale is actually approximately -161.5°C. At this temperature, methane transitions from its liquid state to its gaseous state. It's important to note that methane is a gas at room temperature and pressure, so its boiling point represents the temperature at which it will condense into a liquid under atmospheric pressure.

Explanation
Freon containing bromine is signified by four numbers. Freon is a type of refrigerant that is used in air conditioning and cooling systems. The numbers used to signify different types of Freon represent the chemical composition of the refrigerant. In the case of Freon containing bromine, it is identified by four specific numbers.

Explanation
Trichlorofluoromethane, also known as CFC-11, has a boiling point of 23.77 degrees Celsius on the Celsius scale.

Explanation
The correct answer is CClF3. Chlorotrifluoromethane is a compound formed by one carbon atom bonded to one chlorine atom and three fluorine atoms. The formula CClF3 represents this arrangement, with the symbol C representing carbon, Cl representing chlorine, and F representing fluorine.

Explanation
Frédéric Swarts is the correct answer because he is known for pioneering the synthesis of chlorofluorocarbons (CFCs). CFCs are a group of organic compounds that were widely used in various industries, including as refrigerants and aerosol propellants. Swarts conducted extensive research on the synthesis and properties of CFCs in the early 20th century, making significant contributions to the field. His work laid the foundation for the widespread use of CFCs, although their environmental impact and contribution to ozone depletion were later discovered.

Explanation
CFCs, or chlorofluorocarbons, were commonly used as refrigerants in the past. They were chosen because they were non-toxic, non-flammable, and had excellent heat transfer properties. However, it was discovered that CFCs were causing damage to the ozone layer. As a result, international agreements were made to phase out the use of CFCs. Hydrogen Sulphide, on the other hand, was not used as a refrigerant and therefore was not replaced by CFCs.

Explanation
James Lovelock is credited with discovering the presence of CFCs (chlorofluorocarbons) in the air. CFCs are synthetic compounds that were widely used in aerosol propellants, refrigerants, and solvents. Lovelock, a British scientist, conducted research in the 1970s and 1980s that led to the discovery of CFCs in the atmosphere. His findings were instrumental in raising awareness about the detrimental effects of CFCs on the ozone layer and ultimately led to the global phase-out of these chemicals.