Multiple Choice
What is the common name for the molecular compound N_2O?
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3. Chemical Reactions
Naming Molecular Compounds
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
CFCs (chlorofluorocarbons) were originally developed to replace which refrigerant compound(s)?
A
Sulfur dioxide (SO_2)
B
Dichlorodifluoromethane (CCl_2F_2)
C
Dichloromethane (CH_2Cl_2)
D
Ammonia (NH_3)
Verified step by step guidance1
Understand the context: CFCs (chlorofluorocarbons) were developed as refrigerants to replace earlier refrigerant compounds that had certain drawbacks such as toxicity, flammability, or environmental harm.
Identify common refrigerants used before CFCs: Some early refrigerants included ammonia (NH_3), sulfur dioxide (SO_2), and dichloromethane (CH_2Cl_2).
Recall the properties of these compounds: Ammonia and sulfur dioxide were used but had issues like toxicity and flammability, while dichlorodifluoromethane (CCl_2F_2) is itself a CFC, not a compound replaced by CFCs.
Recognize that CFCs were designed to replace refrigerants like ammonia and sulfur dioxide due to their safer and more stable chemical properties.
Conclude that the refrigerants replaced by CFCs were primarily ammonia (NH_3) and sulfur dioxide (SO_2), not dichloromethane (CH_2Cl_2), which is not typically listed as a refrigerant replaced by CFCs.
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