Current Affairs · Environmental Regulations
Which of the following chlorofluorocarbon/hydrochlorofluorocarbon refrigerants has been phased out globally under environmental protocols?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1R600a
- 2R134a
- 3R32
- 4R22✓
Correct answer
R22
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