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प्रश्न
Give reason for the following:
Conc. Nitric acid renders iron passive.
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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 equation and name the products formed when cupric oxide reacts with nitric acid.
Write an equation for the following conversions A, B, C and D.
How will you prepare the following from nitric acid?
Aqua regia
Nitric acid cannot be concentrated beyond 68% by the distillation of a dilute solution of HNO3, State the reason.
Give reason for the following:
Concentrated nitric acid is a stronger oxidizing agent.
Give two chemical tests for nitric acid.
What do you observe when?
Conc. HNO3 drops on the skin of a person?
Fill in the blank with appropriate word/words.
Ammonal is a mixture of ________ and __________
The figure given below illustrates the apparatus used in the laboratory preparation of nitric acid:
(i) Name A (a liquid), B( a Solid) and C(a liquid).
(ii) write the balanced chemical equation to show how nitric acid undergoes decomposition.
(iii) Write the balanced chemical equation for the reaction in which copper is oxidized by concentrated nitric acid.
What is the property of nitric acid which allows it to react with copper?
