which gas is used to identify metallic radicals?
Answers
Carbon dioxide and hydrogen sulphide are the two gases used to identify radicals.
•Metallic radicals are identified on the basis of their acidity and basicity.
•Acidity is characterized by presence of -COOH group and basicity is characterized by presence of -OH group.
•To recognised acidic radical, sulphuric acid and nitric acid is used.
•Carbon dioxide liberation indicates presence of carbonate group.
•For basic radicals, hydrogen sulphide is used because cations readily precipitate as sulphate complex.
H₂S gas is used to identify metallic radials
Explanation:
Hydrogen sulfide gas is flammable and explosive.
It reacts with metallic ions and form metal sulfides that are insoluble.
It is the metallic conductor of electricity.
Hydrogen sulfide gas is produced by treating hydrogen on molten sulfide at 450°C ans hydrocarbon acts as a source of hydrogen in this process.