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प्रश्न
What do you see when concentrated nitric acid is added to copper?
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उत्तर
When concentrated nitric acid is added to copper brown fumes of nitrogen dioxide are observed.
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संबंधित प्रश्न
Explain with the help of a balanced equation the brown ring test for nitric acid.
What are the reactants required for Ostwald process and what are their sources?
Name the catalyst used in Ostwald process.
Give reason for the following:
Aluminum does not react with nitric acid of any concentration.
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Sulphar is added to hot and conc. HNO3?
Name (formula is not acceptable) the gas produced in the following reaction:
On warming ammonium sulphate with sodium hydroxide solution.
Write the equation for the reaction of dilute nitric acid with copper.
Copy and complete the following table relating to important industrial processes output refers to the product of the process not the intermediate steps.
| Name of process | Inputs | Catalyst | Equation for catalysed reaction | Output |
| Haber process | Hydrogen + | |||
|
Ammonia + |
Nitric acid |
A dilute acid B does not normally give hydrogen when reacted with metals but does give a gas when it reacts with copper. Identify B. Write the equation with copper.
Give a balanced equation for the following reaction:
Copper reacts with concentrated nitric acid.
