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SF6 exists but SH6 has no existence. Why...

`SF_6` exists but `SH_6` has no existence. Why?

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UNITED BOOK HOUSE-SET-13-Exercise
  1. The reductive ozonolysis of benzene gives.

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  2. Define Peptization and Emulsion.

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  3. SF6 exists but SH6 has no existence. Why?

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  4. Arrange the following oxides in the order of their increasing acidity....

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  5. 6gm of urea and 9gm of glucose are dissolved in 1 Litre aqueous soluti...

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  6. For the cell Cu//Cu^(2+)//Hg^(2+)//Hg, E(cell)^(6) = 0.45 V. Find the ...

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  7. Alcohol acts as both acids and bases. Why?

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  8. Give two examples of Co-polymers.

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  9. Differentiate between Schottky and Frenkel defect.

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  10. What is point defect? A metal has cubic close packed crystal structure...

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  11. What do you mean by colligative properties? Boiling point of water at ...

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  12. State Faradays laws of electrolysis. What is meant by 1 Faraday?

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  13. How many faradays of electricity will be required to electrilyse compl...

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  14. What do you mean by Zero order reaction? Determine the order of the fo...

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  15. What do you mean by Zero order reaction? Determine the order of the fo...

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  16. What is gold number? Why are lyophilic sols more stable than lyophobic...

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  17. H3PO3 acts as a reducing agent but H3PO4 does not. Why?

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  18. Describe Cannizzaro's reaction and cross-aldol condensation.

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  19. What is Tollens reagent? How can acetaldehyde and acetone be distingui...

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  20. How will you convert: Formic acid to oxallic acid.

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