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प्रश्न
The chemical used in the brown ring test is ______.
पर्याय
CuSO4
FeSO4
Fe2(SO4)3
ZnSO4
उत्तर
The chemical used in the brown ring test is FeSO4.
Explanation:
In the brown ring test for nitrates, ferrous sulphate (\[\ce{FeSO4}\]) reacts with concentrated sulphuric acid (\[\ce{H2SO4}\]) and nitrate ions to form a brown ring due to the formation of the \[\ce{Fe(NO)^2+}\] (nitroso iron complex).
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संबंधित प्रश्न
Give a balanced chemical equation for Laboratory preparation of Nitric acid.
Ammonia is used in the Ostwald process.
Name the catalyst used in the process.
Describe the Ostwald's process for the manufacture of nitric acid with labeled diagram.
Explain with the help of a balanced equation, the brown ring test for nitric acid.
Why is freshly prepared ferrous sulphate solution used in the ring test?
Give reason for the following :
Nitric acid usually does not yield hydrogen from acids.
What do you observe when?
Hydrogen sulphide is bubbled through conc. HNO3?
Complete and balance the following equation :
FeSO4 + NO + H2O → ______________
Fill in the blank with appropriate word.
Furning nitric acid is obtained by dissolving an excess of _______ in conc. Nitric acid
Give reason for the following:
In the laboratory preparation of nitric acid, the mixture of concentrated sulphuric acid and sodium nitatre should not be heated very strongly, above 200°C
