Analysis of Organic Compounds, Class 11 Chemistry NCERT Solutions

1. There will be total 10  MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying.

1. Detection of nitrogen, sulphur, halogens and phosphorus in an organic compound is done by:

Dumas method

Metal-carbon test

Lassaignes test

Victor-meyer test

Your comments:

Question 1 of 10

2. In case both nitrogen and sulphur is present in an organic compound with sodium fusion extract a blood red colour is formed that is of:

Ammonium molybdate

Ferriferrocyanide

ferric thiocyanate

Ammonium phosphomolybdate

Your comments:

Question 2 of 10

3. When a compound is heated with copper(ii) oxide it is the test for:

Nitrogen

Halogens

Carbon

Phosphorus

Your comments:

Question 3 of 10

4. Laissaigne's extract is made to:

Convert ionic compounds to covalent compounds

Convert covalent compounds to ionic compounds

Dissolve the compound

None of these

Your comments:

Question 4 of 10

5. In sulphur estimation, 0.157 g of an organic compound gave 0.4813 g of barium sulphate. The percentage of sulphur in the compound is:

34%

34.04%

42.10%

43%

Your comments:

Question 5 of 10

6. A compound when treated with sodium peroxide and the solution is boiled with nitric acid and then treated with ammonium molybdate is the test for:

Nitrogen

Phosphorus

Sulphur

Halogen

Your comments:

Question 6 of 10

7. The white precipitate which is formed in the detection of chloride ion is due to the formation of:

Ammonium chloride

Sodium chloride

Aluminium sulphate

Calcium chloride

Your comments:

Question 7 of 10

8. In Carius method of estimation of halogen, 0.15 g of an organic compound gave 0.12 g of AgBr. The percentage of bromine in the compound is:

43%

34.04%

34%

None of these

Your comments:

Question 8 of 10

9. A pale yellow precipitate soluble in ammonium hydroxide solution indicates the presence of:

chlorine

Iodine

Bromine

Phosphorus

Your comments:

Question 9 of 10

10. In the test of nitrogen the Prussian blue color formed is of:

Nitrogen

Sodium thiocyanate

Ammonium molybdate

Ferriferrocyanide

Your comments:

Question 10 of 10

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