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प्रश्न
What is passive iron?
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उत्तर
Iron becomes inert when reacted with nitric acid due to the formation of an extremely thin layer of insoluble metallic oxide, which stops the reaction.
\[\ce{Fe + 6HNO3 -> Fe(NO3)3 + 3H2O + 3NO2}\]
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संबंधित प्रश्न
Name the Following:
Gas obtained by treating manganese with 1% nirtric acid.
What do you observe when?
Conc. HNO3 drops on the skin of a person?
What happens when (Given balanced equation) :
Sulphar is added to hot and conc. HNO3?
What happen when (Given balanced equation) :
Nitric acid is dissolved in large amount of water?
Complete and balance the following equation :
SO2 + HNO3 → ______________
Write balanced equation for the reaction between nitrogen and oxygen, when lightning strikes.
Describe what you see when concentrated nitric acid is added to copper.
What happens when
NH3 solution is added to CuSO4 solution drop by drop and then in excess.
Lead nitrate decomposes on heating to give ______.
From the following list of substances, choose one substance in the case which matches the description given below:
Ammonium nitrate, calcium hydrogen carbonate, copper carbonate, lead nitrate, potassium nitrate, sodium carbonate, sodium hydrogen carbonate, zinc carbonate.
A Substance that gives off only oxygen when heated.
