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What are the different oxidation states,...

What are the different oxidation states, exhibited by lanthanoids?

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MODERN PUBLICATION-TEST PAPER 4-EXERCISE
  1. What is the difference between catalyst and photosensitizer ?

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  2. What meant by chelate ? Give an example.

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  3. What are the different oxidation states, exhibited by lanthanoids?

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  4. Which set of elements is called chalcogens ?

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  5. Give a chemical test to distinguish between ethyl alcohol and methyl a...

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  6. What problem arises in using alitame as artificial sweetener?

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  7. What is spectrochemical series? Explain the difference between a weak ...

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  8. What is the packing efficiency in a bcc arrangement of crystals ?

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  9. What is the difference between order and molecularity of a reaction ?

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  10. Write short note on Iodoform reaction.

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  11. Write the principle of preparation of bakelite. Give its two uses.

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  12. Briefly discuss the structure of proteins

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  13. Write the principle of preparation of Neoprene.

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  14. How can you prepare phenol by Dow’s process?

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  15. What is Cannizzaro's reaction? Give equation.

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  16. Why the detergent with straight chain hydrocarbon group are better tha...

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  17. What is a semiconductor? What aren-type and p-type semiconductors?

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  18. According to collision theory:

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  19. Explain the following terms: Electrophoresis

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  20. State and explain Faraday's laws of electrolysis. 0.2015g of copper we...

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