Explanation
The production of chlorofluorocarbons (CFC) gas, which is banned in India, was previously used in domestic refrigerators and air conditioners. Therefore, the correct option is B) Refrigerator.
CFCs were commonly used as refrigerants and propellants in these appliances. However, due to their harmful impact on the ozone layer, the use of CFCs has been phased out and replaced with more environmentally friendly alternatives.
