Answer
425.1k+ views
Hint: The molecular formula of nitric acid is \[\text{N}{{\text{O}}_{3}}\]. The compound is highly corrosive and can be detected through the organic tests in the laboratory. Aqua fortis is another name for the nitric acid.
Complete answer:
To detect the presence of the nitric oxide, the brown ring test is conducted.
Firstly, we have to take a test tube in which a solution of nitric acid is present. Now, we will add a solution of iron (III) sulphate in it. After that add a concentrated sulphuric acid so that it will form a layer below the aqueous solution. After adding the concentrated sulphuric acid, we will see the formation of a brown ring separating the two layers.
In this test, the reduction of nitric acid and oxidation of iron (III) takes place.
The balanced chemical reaction is:
\[\text{2HN}{{\text{O}}_{3}}\text{ + 3}{{\text{H}}_{2}}\text{S}{{\text{O}}_{4}}\text{ + 6FeS}{{\text{O}}_{4}}\to \text{ 3F}{{\text{e}}_{2}}{{\left( \text{S}{{\text{O}}_{4}} \right)}_{3}}\text{ + 2NO + 4}{{\text{H}}_{2}}\text{O}\]
Here, the oxidation state of nitrogen changes from +5 to +2 which indicates that the nitrogen is reduced. Also, in this reaction nitrate ion acts as an oxidising agent. Whereas the oxidation state of iron changes from +2 to +3 which indicates that the iron is oxidised.
Note: The brown ring which is formed is made up of the nitrosonium complex. The layer is made between the two layers i.e. one layer is of iron sulphate solution and the sample whereas another one is of concentrated sulphuric acid. The test helps determine the quality of food because if the amount of nitric acid is more than 10 milligrams then it is toxic for us.
Complete answer:
To detect the presence of the nitric oxide, the brown ring test is conducted.
Firstly, we have to take a test tube in which a solution of nitric acid is present. Now, we will add a solution of iron (III) sulphate in it. After that add a concentrated sulphuric acid so that it will form a layer below the aqueous solution. After adding the concentrated sulphuric acid, we will see the formation of a brown ring separating the two layers.
In this test, the reduction of nitric acid and oxidation of iron (III) takes place.
The balanced chemical reaction is:
\[\text{2HN}{{\text{O}}_{3}}\text{ + 3}{{\text{H}}_{2}}\text{S}{{\text{O}}_{4}}\text{ + 6FeS}{{\text{O}}_{4}}\to \text{ 3F}{{\text{e}}_{2}}{{\left( \text{S}{{\text{O}}_{4}} \right)}_{3}}\text{ + 2NO + 4}{{\text{H}}_{2}}\text{O}\]
Here, the oxidation state of nitrogen changes from +5 to +2 which indicates that the nitrogen is reduced. Also, in this reaction nitrate ion acts as an oxidising agent. Whereas the oxidation state of iron changes from +2 to +3 which indicates that the iron is oxidised.
Note: The brown ring which is formed is made up of the nitrosonium complex. The layer is made between the two layers i.e. one layer is of iron sulphate solution and the sample whereas another one is of concentrated sulphuric acid. The test helps determine the quality of food because if the amount of nitric acid is more than 10 milligrams then it is toxic for us.
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Why Are Noble Gases NonReactive class 11 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let X and Y be the sets of all positive divisors of class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x and y be 2 real numbers which satisfy the equations class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x 4log 2sqrt 9k 1 + 7 and y dfrac132log 2sqrt5 class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x22ax+b20 and x22bx+a20 be two equations Then the class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Trending doubts
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
At which age domestication of animals started A Neolithic class 11 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Which are the Top 10 Largest Countries of the World?
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Give 10 examples for herbs , shrubs , climbers , creepers
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference Between Plant Cell and Animal Cell
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Write a letter to the principal requesting him to grant class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Change the following sentences into negative and interrogative class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Fill in the blanks A 1 lakh ten thousand B 1 million class 9 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)