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प्रश्न
The chemical used in the brown ring test is ______.
विकल्प
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.
Give two chemical equations for the following:
Nitric acid showing as acidic character.
Name a solution which absorbs nitric oxide.
Name the Following:
Gas obtained by treating manganese with 1% nirtric acid.
What is meant by the following term ?
Decrepitation
Why is the temperature maintained at 200°C in the above reaction?
Name the catalyst used in Ostwald process.
Write balanced equation and name the product formed when :
Zinc reacts with dilute nitric acid.
Complete and balance the following equation :
FeSO4 + NO + H2O → ______________
Give the name of a soluble lead salt and write the eqution for the action of heat on this salt. Write the equation for the preparation of nitric acid from potassium nitrate.
