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In an estimation of sulphur by Carius me...

In an estimation of sulphur by Carius method, 0.468 of an organic sulphur compound gave 0.668 g of barium sulphate. Find the percentage of sulphur in the compound.

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`"Percentage of sulphur" = (32)/(233) xx ("Mass of barium sulphate")/("Mass of compound") xx 100`
`=(32)/(233) xx ((0.668 g))/((0.468 g)) xx 100=19.60%`
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FULL MARKS-FUNDAMENTALS OF ORGANIC CHEMISTRY -Additional Questions Solved (3-Mark Questions)
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  2. How would you detect the halogens in an organic compound?

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  3. Why nitric acid is added in the Lassaigne's test for halogens?

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  4. Explain about the test for phosphorous in an organic compound.

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  5. Explain about principle and reactions involved in carius method of est...

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  6. Explain about the procedure and calculation behind the carius method o...

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  7. How are naphthalene and camphor purified?

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  8. Explain how nitrobenzene and benzene are separated and purified. (or) ...

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  9. Explain about differential extraction.

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  10. Explain about the principle involved in chromatography. Give its types...

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  11. Describe about adsorption chromatography.

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  12. What are hybridisation states of each carbon atom in the following com...

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  13. Give the IUPAC names of the following compounds. (a) (f) Cl(2)CHCH(...

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  14. Write the formulas for the first five members of each homologous serie...

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  15. Write the formulas for the first five members of each homologous serie...

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  16. Identify the functional groups in the following compounds. (a)

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  17. What is the difference between distillation, distillation under reduce...

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  18. (a) What is Lassaigne's extract? Will NaCN give a positive Lassaigne's...

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  19. 0.3780 g of an organic compound gave 0.5740 g of silver chloride in Ca...

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  20. In an estimation of sulphur by Carius method, 0.468 of an organic sulp...

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