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प्रश्न
Give reason for the following:
Aluminum does not react with nitric acid of any concentration.
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उत्तर
Aluminum does not react with nitric acid of any concentration because of the formation of extremely thin, unreactive, protective layer of insoluble metallic oxide on the surface of aluminium which stops further reaction.
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संबंधित प्रश्न
Explain the following:
Concentrated nitric add appears yellow when it is left standing in a glass bottle.
Give the chemical name and formula of the substance formed as a brown ring in the test for nitrate radical.
Give reason for the following:
Aqua regia dissolves gold and platinum.
What happen when (Given balanced equation) :
Nitric acid is dissolved in large amount of water?
Complete and balance the following equation :
Pt + HNO3 + HCl → ___________
Name (formula is not acceptable) the gas produced in the following reaction:
By the action of concentrated nitric acid on copper.
Account for the yellow colour that appears in concentrated nitric acid when it is left standing in an ordinary glass bottle.
Write a chemical equation to illustrate the acidic nature of nitric acid.
Explain the following:
Concentrated nitric acid appears yellow when it is left standing in a glass bottle.
Explain why only all-glass apparatus should be used for the preparation of nitric acid by heating concentrated sulphuric acid and potassium nitrate.
