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प्रश्न
What are chlorofluorocarbons, why they become popular as substitute of ammonia as refrigerant?
उत्तर
A chlorofluorocarbon (CFC) is an organic compound which contains carbon, chlorine and fluorine produced as a volatile derivative of methane and ethane.
Pure ammonia gas is highly toxic to humans and would pose a threat if the refrigerator were to leak. Hence, CFCs became popular as a substitute of ammonia as a refrigerant.
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संबंधित प्रश्न
Pick the odd member from the list giving reasons:
Ammonia, sulphur dioxide, hydrogen chloride, carbon dioxide.
Copy and complete the following equations:
- AlN + H2O →
- 2NH3 + 3PbO →
- NH3 +3Cl2 →
- NH3 + CO2 →
- Which property of ammonia is illustrated by equation (c)?
- What important fertiliser is prepared from equation (d)? State the conditions.
Correct the following:
Conc. H2SO4 is a drying agent for NH3
Choose the correct word or phrase from the bracket to complete the following sentence.
Heating ammonium chloride with sodium hydroxide produces ______
Choose the correct answer:
Ammonia can be obtained by adding water to ______.
Which feature of the ammonia molecule leads to the formation of the ammonium ion when ammonia dissolves in water?
Give a balanced equation for the reduction of hot copper (II) oxide to copper using ammonia gas.
Give reasons:
Ammonium compounds do not occur as minerals.
