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प्रश्न
The chemical used in the brown ring test is ______.
विकल्प
CuSO4
FeSO4
Fe2(SO4)3
ZnSO4
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उत्तर
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).
संबंधित प्रश्न
Ammonia is used in the Ostwald process.
Name the catalyst used in the process.
Name the Following:
Two coloured nitrates.
Give three equations of the reaction to prove that nitric acid is an acid.
Complete and balance the following equation :
Fe + HNO3(conc.) → _____________
Complete and balance the following equation :
FeSO4 + NO + H2O → ______________
Write the equation for the reaction:
Aluminum, Nitride and Water.
Name the gas evolved:
The gas produced on heating sodium nitrate.
What would you observe in the following case:
Copper is heated with concentrated nitric acid in a hard glass test tube.
Write a balanced equation for following :
Laboratory preparation nitric acid.
What is the property of nitric acid which allows it to react with copper?
