Consider the following : 1. Aerosols 2. Foam agents 3. Fire retardants 4. Lubricants In the making of how many of the above are hydrofluorocarbons used.

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Q: 30 (IAS/2023)
Consider the following :
1. Aerosols
2. Foam agents
3. Fire retardants
4. Lubricants
In the making of how many of the above are hydrofluorocarbons used.

question_subject: 

Maths

question_exam: 

IAS

stats: 

0,22,10,0,4,6,22

Hydrofluorocarbons (HFCs) are commonly used in diverse applications due to their properties. Let`s dissect each option:

Option 1: Aerosols. HFCs are used as propellants in aerosols as they are safer for the ozone layer compared to alternatives.

Option 2: Foam agents. They are used in the production of foams due to their abilities to produce a light, strong structure.

Option 3: Fire retardants. HFCs are used in fire extinguishing systems, they are non-conductive and do not leave any residue.

Option 4: Lubricants. HFCs aren`t typical ingredients in lubricants but are used in specialized applications where chemical stability and non-flammability are required.

Although their use may be less prevalent in lubricants, they are still used, making Option 4, "All four," the correct answer. It`s important to keep in mind that HFC use is being phased out due to their high global warming potential.