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In Lassaigne's test, the organic compoun...

In Lassaigne's test, the organic compound is fused with sodium metal so as to

A

hydrolyse the compound

B

form a sodium derivative

C

convert nitrogen, sulphur or halogens if present into soluble ionic sodium compound

D

burn the compound

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The correct Answer is:
C
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I. Read the following passage and answer questions 1 - 5 that follow: Nitrogen, sulphur and halogens in an organic compound are detected by Lassaigne's test in which the organic compound is fused with sodium metal. During fusion N is converted to NaCN, S to Na_2 S and halogens to sodium halides. Why is an organic compound fused with metallic sodium for testing N, S and halogens?

I. Read the following passage and answer questions 1 - 5 that follow: Nitrogen, sulphur and halogens in an organic compound are detected by Lassaigne's test in which the organic compound is fused with sodium metal. During fusion N is converted to NaCN, S to Na_2 S and halogens to sodium halides. ln the Lassaigne's test for nitrogen in an organic compound, the prussian blue colour is due to ......

I. Read the following passage and answer questions 1 - 5 that follow: Nitrogen, sulphur and halogens in an organic compound are detected by Lassaigne's test in which the organic compound is fused with sodium metal. During fusion N is converted to NaCN, S to Na_2 S and halogens to sodium halides. What colour will you get in Lassaigne's test if the compound contains both N and S?

I. Read the following passage and answer questions 1 - 5 that follow: Nitrogen, sulphur and halogens in an organic compound are detected by Lassaigne's test in which the organic compound is fused with sodium metal. During fusion N is converted to NaCN, S to Na_2 S and halogens to sodium halides. Give a test for detection of sulphur with Lassaigne's extract.

OP TANDON-CHARACTERISATION OF ORGANIC COMPOUNDS -OBJECTIVE QUESTIONS Level-A
  1. Carbon and hydrogen are estimated by

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  2. Lassaigne's test is used for th detection of:

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  3. In Lassaigne's test, the organic compound is fused with sodium metal s...

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  4. Nitrogen containing organic compound when fused with sodium metal form...

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

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

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

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

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

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

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

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  12. Copper wire test is called

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

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

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

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

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

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

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

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

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