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How is O2 obtained in the laboratory?...

How is `O_2` obtained in the laboratory?

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ICSE-P-BLOCK ELEMENTS-EXERCISE (PART-II)(DESCRIPTIVE QUESTIONS)(LONG ANSWER QUESTIONS)
  1. What are allotropes of sulfur?

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  2. Give reasons for the following observations: (i) SF6 is not easily ...

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  3. How is O2 obtained in the laboratory?

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  4. Why is O2 inert at room temperature ?

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  5. Name the elements of group 17. Describe the trend in the properties of...

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  6. Discuss gradation in physical and chemical properties among halogens.

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  7. How does chlorine occur in nature ? Give names and formulae of its imp...

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  8. How is Cl2 obtained in the laboratory ? Describe its important propert...

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  9. Arrange the following in the increasing order of acid strength : 1) H...

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  10. Arrange the following in the order of property indicated for each set:

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  11. Arrange the following in order of decreasing ionic character M-F,M-...

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  12. What are interhalogen compounds ? How are they classified? Give the st...

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  13. Using VSEPR theory, predict the probable structures of SO(3)^(2-),IF...

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  14. Describe the molecular shapes of the following

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  15. Write the formula of the noble gas species that is isostructural with ...

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  16. With what neutral molecule is ClO^(–) isoelectronic? Is that molecule ...

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  17. Describe the position of noble gases in the periodic table .

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  18. Describe the position of noble gases in the periodic table .

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  19. Discuss the trend in the following properties of noble gases: (i) Me...

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  20. Using the VSEPR theory, discuss the molecular shapes of XeF(2).XeF(...

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