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Which is the most suitable answer here?
A second category of refrigerants currently available is the hydrochlorofluorocarbons (HCFCs).  Although they contain chlorine, which is damaging to the ozone layer, they also contain_________, which makes them chemically less stable once they enter the atmosphere.   



A. Hydrogen
B. Water
C. Bromine
D. Helium
E. Heptane

This question is part of CFC practice exam (100 Questions)
Asked by Pbarton, Last updated: Mar 24, 2020

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1 Answer

John Smith

John Smith

Answered Apr 07, 2017

Hydrogen
 

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