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"Direct iodination of benzene is difficu...

"Direct iodination of benzene is difficult." Explain. Suggest an alternative route for the synthesis of iodo benzene.

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USHA PUBLICATION-PREVIOUS YEAR QUESTION 2016-PREVIOUS YEAR QUESTION
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  2. How does common ion effect help in the preparation of pure NaCl from a...

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  3. "Direct iodination of benzene is difficult." Explain. Suggest an alter...

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  4. Write the structural formulae of the three derivatives of monocarboxyl...

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  5. Equivalent conductance at infinite dilution of NH4CI, NaOH and NaCl ar...

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  6. What is a Buffer solution? Derive Hendersen's equation for calculation...

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  7. The half-life of a radioactive element is 69.3 days. Find out the time...

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  8. The half - life of a radioactive element is 69.3 days.Find out the tim...

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  9. What is Diazo reaction ? Write the structure of the product of this re...

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  10. How is acetaldehyde prepared from acetylchloride?

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  11. How does acetaldehyde react with Tollen's reagent

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  12. How does acetaldehyde react with Phenyl hydrazine ?

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  13. Arrange the order of reactivity of the following compounds towards nuc...

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  14. Describe the laboratory method of preparation of sulphur dioxide. How ...

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  15. Define transition elements. Discuss their followinng characteristic pr...

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  16. Define specific, equivalent and molar conductance. Write their units. ...

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  17. Write notes on: Hess's law of constant heat of summation.

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  18. Which one of the following compound is a protein ?

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  19. Which one is the ore of copper ? (a) Bauxite (b) Dolomite (c) haematit...

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  20. In Hofmann-bromamide reaction an amide is converted to - (a) primary a...

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