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Describe the chemistry of detection of S...

Describe the chemistry of detection of `S` by Lassaigne's method.

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Detection of sulpur :During the preparation of Lassaigne.s extract, sulphur present in the compound gets fused with sodium metal, sodium sulphide is formed.
`2Na + S overset(Delta)(rarr)underset("Sodium sulphate")(Na_2S)`
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OMEGA PUBLICATION-ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES-MULTIPLE CHOICE QUESTIONS
  1. Describe the chemistry of detection of S by Lassaigne's method.

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  2. The I.U.P.A.C name of CH3-CH=CH-overset(O)overset(||)C-O-CH2-CH3

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  3. The I.U.P.A.C. name of CH2 = CH2-CN is

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  4. The most stable conformation of n-butane is

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  5. Which process is suitable for the purification of aniline?

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  6. Anthracene is purified by

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  7. Which of the following compounds does not give Lassaigne's test for n...

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  8. In Kjeldahl method, the presence of nitrogen is estimated as

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  9. Molecular mass of volatile substance may be determined by

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  10. Convey the following information in the form of a balanced chemical eq...

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  11. The most stable ion is

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  12. The functional group for aldehydes is

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  13. The functional group - O - belongs to the family of

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  14. The word root 'oct' is for

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  15. Steam distillation is applied for the separation of those compounds wh...

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  16. The process of differential extraction is based upon

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  17. A substance which decomposes below its boiling point can be best puri...

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  18. In Duma's method, the gas which is collected in nitrometer is

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  19. The first organic compound prepared is

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  20. General formula CnH(2n+1), OH is of

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  21. Which of the following compound will give blood red colour while doin...

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