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Explain the reason for the fusion of an ...

Explain the reason for the fusion of an organic compound with metallic sodium for testing nitrogen, sulphur and halogens.

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Organic compounds are covalent in nature and do not respond to the usual tests for nitrogen, sulphur and halogens carried out to test them in ionic form. In order to convert these elements in the corresponding ionic forms, the organic compound is fused with metallic sodium.
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ICSE-ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES AND TECHNIQUES -NCERT TEXT-BOOK EXERCISES (WITH HINTS AND SOLUTIONS )
  1. Discuss the chemistry of Lassaigne’s test.

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  2. Differentiate between the principle of estimation of nitrogen in an or...

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  3. Discuss the principle of estimation of halogens, sulphur and phosphoru...

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  4. Explain the principle of paper chromatography.

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  5. Why is nitric acid added to sodium extract before adding silver nitrat...

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  6. Explain the reason for the fusion of an organic compound with metallic...

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  7. Name a suitable technique of separation of the components from a mixtu...

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  8. Explain, why an organic liquid vaporises at a temperature below its bo...

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  9. Will "CC"l(4) give white precipitate of AgCl on heating it with silver...

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  10. Why is a solution of potassium hydroxide used to absorb carbon dioxide...

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  11. Why is it necessary to use acetic acid and not sulphuric acid for acid...

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  12. An organic compound contains 69% carbon and 4.8% hydrogen, the remaind...

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  13. A sample of 0.50 g of an organic compound was treated according to Kje...

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  14. 0.3780 g of an organic chloro compound gave 0.5740 g of silver chlorid...

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  15. In the estimation of sulphur by Carius method, 0.468 g of an organic s...

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  16. In the organic compound CH(2) = CH – CH(2) – CH(2) – C equivCH, the pa...

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  17. In the Lassaigne’s test for nitrogen in an organic compound, the Pruss...

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  18. Which of the following carbocation is most stable ? (a) (CH(3))(3)C....

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  19. The best and latest technique for isolation, purification and separati...

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  20. The reaction : CH3 CH2 l + KOH(aq) to CH3 CH2 OH +Kl is classifi...

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