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What are pseudohalogens ? Give example....

What are pseudohalogens ? Give example.

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A pseudo halogen is made up of two electronegatic atoms/groups and in its molecular form resembles the halogens. Pseudo-halogens behave halogens in their chemistry. They form anions which resemble halide ions in their behaviour. Some common pseudohalogens (which exist as dimeric species) along with pseudohalide ions are listen below:
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BETTER CHOICE PUBLICATION-THE P-BLOCK ELEMENTS-QUESTION BANK
  1. Draw the structure of following interhalogen compound. IF7

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  2. With what neutral molecule is CIO^- isoelectronic? Is that molecule a ...

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  3. What are pseudohalogens ? Give example.

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  4. What are freons ?

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  5. Why are the elements of Group 18 known as noble gases ?

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  6. Why elements of Group 18 are less reactive or inert?

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  7. Noble gases have low boiling points. Explain.

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  8. Why has it been difficult to study the chemistry of radon?

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  9. Why electron gain enthalpies of noble gases are positive ?

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  10. Why noble gases have very high values of ionisation enthalpies?

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  11. Why is helium placed in p-block elements although its last electron en...

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  12. What inspired N. Bartlett,for carrying out the reaction between Xe and...

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  13. What inspired N. Bartlett,for carrying out the reaction between Xe and...

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  14. Among noble gases, only Xe is known to form chemical compounds. Why ?

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  15. Why do noble gases form compounds with fluorine and oxygen ?

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  16. How are Xenon fluorides XeF2, XeF4 and XeF6 prepared ?

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  17. Discuss the structure of the XeF4 on the basis of VSEPR theory.

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  18. Discuss the structure of XeF2 on the basis of VSEPR teory.

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  19. How are XeO3 and XeOF4 prepared?

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  20. Discuss the shapes of XeO3, XeOF4, XeOF2, and XeO2 F2

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