Advertisements
Advertisements
प्रश्न
What are chlorofluorocarbons, why they become popular as substitute of ammonia as refrigerant?
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Pick the odd member from the list, giving reasons:
The following reactions are carried out:
A: \[\ce{Nitrogen + metal -> compound X}\]
B: \[\ce{X + water -> ammonia + another compound}\]
C: \[\ce{Ammonia + metal oxide -> metal + water + N2}\]
One metal that can be used for reaction A is magnesium.
- Write the formula of the compound X formed.
- Write the correctly balanced equation for reaction B where X is the compound formed.
- What property of ammonia is demonstrated by reaction C?
Copy and complete the following equations:
- \[\ce{AlN + H2O ->}\]
- \[\ce{2NH3 + 3PbO ->}\]
- \[\ce{NH3 + 3Cl2 ->}\]
- \[\ce{NH3 + CO2 ->}\]
-
- Which property of ammonia is illustrated by equation (c)?
- What important fertiliser is prepared from equation (d)? State the conditions.
Name a white salt produced by an acid gas and a basic gas.
Complete the following equation.
\[\ce{8NH3 + 3Cl2 ->}\]
Explain the following:
Aqueous ammonia conducts electricity.
Pick the odd number out from the list, giving reasons for your answer:
Ammonia, sulphur dioxide, hydrogen chloride, carbon dioxide
What is the formula for liquid ammonia?
