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प्रश्न
Give reason for the following:
Conc. Nitric acid renders iron passive.
उत्तर
Concentrated nitric acid renders iron passive because of the formation of extremely thin, unreactive, protective layer of insoluble metallic oxide on the surface which stops further reaction.
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संबंधित प्रश्न
Write a balanced chemical equation for the following:
Action of cold and dilute Nitric acid on Copper
What is passive iron?
How will you prepare the following from nitric acid?
Sodium nitrate
Why is the temperature maintained at 200°C in the above reaction?
Give reason for the following :
Nitric acid usually does not yield hydrogen from acids.
Give two chemical tests for nitric acid.
Write balanced equation and name the product formed when :
Cupric oxide reacts with nitric acid.
Choose the correct answer from the option given below :
When treated with nitric acid which of the following liberate hydrogen?
State, what is observe when nitric acid is kept in a reagent bottle for a long time.
Explain the following:
Concentrated nitric acid appears yellow when it is left standing in a glass bottle.
