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Maximum covalency of oxygen is 4. Why?...

Maximum covalency of oxygen is 4. Why?

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Valence shell electronic configuration of `O` `2s^2p^4`. Due to absence of d-orbitals in its valence shell, maximum covalency of oxygen is 4.
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CENGAGE CHEMISTRY-APPENDIX INORGANIC VOLUME 2-Short Answer Type
  1. Name the most catenating element of group 16.

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  2. Give the name of the metalloid in group 16.

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  3. Maximum covalency of oxygen is 4. Why?

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  4. Name the radioactive chalcogen.

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  5. What type of bonds do chalcogens from in +4 and +6 oxidation states?

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  6. Why hypo is used in photography?

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  7. Which allotropic form of oxygen is unstable?

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  8. Which is more acidic: SO2,SeO2, and TeO2?

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  9. Why oxygen molecule is diatomic whereas sulphur molecules is octa atom...

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  10. Among TeF6,SeF6 and SF6 which is more stable?

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  11. Arrange H(2)TeO(3),H(2)SeO(3) and H(2)SO(3) in increasing order of aci...

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  12. What is the relation between acid strength and atomic number of centra...

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  13. What is the relation between acidic nature of oxoacid and electronegat...

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  14. Is formation of ozone from oxygen an endothermic or exothermic reactio...

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  15. Arrange the hydrides of group 16 elements in order of increasing boili...

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  16. Arrange SO3,SeO3 and TeO3 in order of increasing acid strength.

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  17. Arrange the hydrides of group 16 elements in increasing order of reduc...

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  18. Arrange the hydrides of group 16 elements in order of increasing acid ...

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  19. Arrange the hydrised of group 16 in order of increasing bond angle.

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  20. Write the formula of oxide, superoxide and peroxide of caesium.

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