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Which physical properties are generally ...

Which physical properties are generally used to determine purity of organic compounds?

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CHHAYA PUBLICATION-ORGANIC CHEMISTRY : BASIC PRINCIPLES AND TECHNIQUES -WARM UP EXERICSE
  1. Which technique is the most suitable one to separate the three compon...

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  2. The R(f) values of two compounds, X and Y in a mixture determined by T...

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  3. Which physical properties are generally used to determine purity of or...

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

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  5. Give an example of each of: (i) adsorption chromatography and (ii)...

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  6. Which reagent is used to detect the presence of hydrogen in an organi...

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

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  8. In the fusion test of orgainc compounds, the nitrogen of an organic, c...

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  9. Why is Lassaigne'extract not prepared with tap water?

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  10. Write down the formula of Prussian blue.

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  11. Why do diazonium salts not respond to Lassaigne's test ?

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  12. Explain why chlorine but not nitrogen in hydroxylamine hydrochloride (...

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  13. Is it possible to distinguish between hydrazine and phenyl-hydrazine ...

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  14. Explain why the sodium extract is boiled with nitric acid before addi...

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  15. Beilstein test cannot be considered as a confirmatory test for the pr...

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  16. Differentiate between the principles of Dumas method & Kjedahl's meth...

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  17. What is the role of CuSO(4) and K(2)SO(4) used in Kjedahl's method fo...

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  18. Which method is used to extimate N in food stuffs?

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  19. For which compounds, Kjedhal's method is not applicable for the esti...

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  20. What is the principle of Carius method for estimation of S?

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