Advertisements
Advertisements
Question
The chemical used in the brown ring test is ______.
Options
CuSO4
FeSO4
Fe2(SO4)3
ZnSO4
Advertisements
Solution
The chemical used in the brown ring test is FeSO4.
Explanation:
In the brown ring test for nitrates, ferrous sulphate (FeSO4) reacts with concentrated sulphuric acid (H2SO4) and nitrate ions to form a brown ring due to the formation of the Fe(NO)2+ (nitroso iron complex).
RELATED QUESTIONS
Ammonia is used in the Ostwald process.
Give the sources of reactants used in this process.
Give two chemical equations for the following:
Nitric acid acting as the oxidizing agent.
Write a balanced equation and name the products formed when zinc reacts with dilute nitric acid.
Name the Following:
Two coloured nitrates.
Why is the temperature maintained at 200°C in the above reaction?
Give reason for the following:
Nitric acid is used in purification of gold.
Choose the correct answer from the option given below:
The catalyst used in the manufacture of HNO3 by Ostwald process is
Fill in the blank with appropriate word.
Furning nitric acid is obtained by dissolving an excess of _______ in conc. Nitric acid
Explain, why only all glass apparatus should be used for the preparation of nitric acid by heating concentrated sulphuric acid and potassium nitrate.
Explain the following :
An all glass apparatus is used in the laboratory preparation of nitric acid.
