Chlorofluorocarbon class 8
WebAccess Answers to the NCERT Exemplar Class 8 Science Chapter 18 – Pollution of Air and Water Multiple Choice Questions 1. Air is a mixture of various gases. One of the gases is 21% part of the air and is essential for the survival of human beings. This gas is (a) nitrogen (b) oxygen (c) ozone (d) argon Soln: The answer is (b) oxygen Explanation: WebIt contains carbon, chlorine, and fluorine, produced as a volatile derivative of methane, ethane, and propane. Commonly known by the name freon, the manufacture of CFCs. In the past 50 years, cfc emission has increased considerably. It is a colorless, odorless and … Solved Example For You. Q. Write the chemical formulae for. Hexane; Sodium …
Chlorofluorocarbon class 8
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WebMar 9, 2024 · Chlorofluorocarbons (CFC) are a class of organic compounds that are gaseous and contain carbon, fluorine, and chlorine. Some common uses of CFCs … WebSol: (b) Chlorofluorocarbon. 10.Which of the following diseases are caused by smog? (a) Rickets (b) Bronchitis (c) Breathing Problems (d) All of the above Sol: (d) All of the above. 11.DDT and Aluminium cans are examples of ________. (a) Primary Pollutants (b) Secondary pollutants (c) Biodegradable Pollutants (d) Non-Biodegradable Pollutants
WebJan 21, 2024 · Introduction A chlorofluorocarbon (CFC) is an organic compound that contains only carbon, chlorine, and fluorine, produced as a volatile derivative of methane, ethane, and propane. The … WebMar 14, 2016 · CFC stands for Chlorofluorocarbon. As the name suggests, it consists of chlorine, fluorine, and carbon. They are mainly used as refrigerants in cooling systems. As it is released in the atmosphere, it reacts with light and produces the chlorine (Cl-) radical. This chlorine radical, catalyzes the Ozone... read more 0 Comments View 4 more Answers
WebNCERT Solutions for Class 10 Maths Chapter 8; NCERT Solutions for Class 10 Maths Chapter 9; NCERT Solutions for Class 10 Maths Chapter 10; ... Chlorofluorocarbon are nonflammable chemicals mainly used in _____. (a) Perfumes (b) Refrigerators (c) Air conditioners (d) All of the above. WebLiquid Definition. In a liquid state of matter, particles are less tightly packed as compared to solids. Liquids take the shape of the container in which they are kept. Liquids are difficult to compress as particles have less space between them to move. Liquids have fixed volume but no fixed shape.
WebNCERT Solutions for Class 10 Maths Chapter 8; NCERT Solutions for Class 10 Maths Chapter 9; NCERT Solutions for Class 10 Maths Chapter 10; ... Chlorofluorocarbon (d) Methane. Q. Which ofthe following is not a greenhouse gas? (a) Carbondioxide (b) Sulphurdioxide (c) Methane (d) Nitrogen. Related Videos.
WebDec 8, 2024 · CFCs are thought to be a major cause of the ozone hole over Antarctica. (CFCs) or hydrochlorofluorocarbons hydrochlorofluorocarbonsCompounds containing … shopclues jaw dropping dealsWebJan 30, 2024 · hydrochlorofluorocarbon (HCFC) refrigerant. CFCs and HCFCs are ozone-depleting substances ( ODS ) that, if released to the environment, destroy the ozone layer. Moreover, CFC and HCFC refrigerants are also potent greenhouse gases. Their release contributes to global climate change. shopclues india offers todayWebChlorofluorocarbon definition, any of several volatile, inert, saturated compounds of carbon, fluorine, chlorine, and hydrogen: used as refrigerants, foam-blowing agents, … shopclues merchant loginWebFeb 28, 2024 · chlorofluorocarbon (CFC)-12, hydrofluorocarbon (HFC)-134a, hydrofluoroolefin (HFO)-1234yf, or carbon dioxide (R-744). HFC-152a may be used in the future. The Society of Automotive Engineers (SAE) International has developed SAE Ground Vehicle Standards for use of these alternatives. shopclues microwaveWebJan 26, 2024 · What is CFC certification? Chlorofluorocarbon (CFC) certifications give you permission to work on, service and repair equipment that uses chlorofluorocarbon byproducts. HVAC contractors and other industry employees must have this type of certification to work on and install air conditioning units. shopclues net worthWebApr 18, 2024 · Chlorofluoromethanes are being added to the environment in steadily increasing amounts. These compounds are chemically inert and may remain in the … shopclues merchantBecause the time history of CFC concentrations in the atmosphere is relatively well known, they have provided an important constraint on ocean circulation. CFCs dissolve in seawater at the ocean surface and are subsequently transported into the ocean interior. Because CFCs are inert, their concentration in the ocean interior reflects simply the convolution of their atmospheric time evolution and ocean circulation and mixing. shopclues microsoft office