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The prussian blue colour obtained during...

The prussian blue colour obtained during the test of nitrogen by lassaigne's test is due to the formation of:

A

`Fe_(4)[Fe(CN)_(6)]_(3)`

B

`Na_(3)[Fe(CN)_(6)]`

C

`Fe(CN)_(3)`

D

`Na_(4)[Fe(CN)_(5)NOS]`

Text Solution

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The correct Answer is:
A
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OP TANDON-CHARACTERISATION OF ORGANIC COMPOUNDS -OBJECTIVE QUESTIONS Level-A
  1. Nitrogen containing organic compound when fused with sodium metal form...

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  2. The sodium extract on acidification with acetric acid and then adding ...

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  3. The prussian blue colour obtained during the test of nitrogen by lassa...

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  4. Which of the following sodium compound is/are formed when as organic c...

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  5. When N and S both are present in an organic compound, the sodium extra...

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  6. The sodium extract on acidification with acetric acid and then adding ...

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  7. The sodium extract on acidification with acetric acid and then adding ...

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  8. Which of the following compounds gives blood red colouration when its ...

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  9. Copper wire test is called

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  10. Duma's method involves the determination of content of nitrogen in the...

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  11. In Lassaigne's solution, pink/violet colouration is produced when sodi...

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  12. An organic compound on heating with CuO produces CO(2) but no water. I...

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  13. Lassaigne's test (with silver nitrate) is commonly used to detect halo...

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  14. In Lassaigne's test for the detection of halogen , the sodium fusion e...

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  15. In Kjeldahl's method of estimation of N,CuSO(4) acts as

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  16. In dumas method for the estimation of nitrogen in an organic compound,...

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  17. An organic compound which produces a bluish green colored flame on hea...

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  18. The hottest region of Bunsen flame shown in the figure below is:

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  19. In the estimation of sulphur organic compound on treating with conc. H...

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  20. Schiff's and Piria method is used for the estimation of:

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