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Draw the structure of chromate and dichr...

Draw the structure of chromate and dichromate ion.

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In the dichromate dianion

ASSAM ACADEMIC CENTRE-The p-Block Elements-Example
  1. Arrange the following in increasing order if acid strength: HCl, HI, H...

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  2. Arrange the following groups of substances in the order of the propert...

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  3. Draw the structure of chromate and dichromate ion.

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  4. Give the formula and describe the structure of a noble gas species whi...

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  5. Give the formula and describe the structure of a noble gas species whi...

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  6. Answer the following: why do noble gases have comparatively large atom...

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  7. List two uses each from neon & argon gases.

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  8. Name a molecule in which oxidation state of oxygen is +2.

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  9. Write the reaction of thermal decomposition of sodium azide.

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  10. What happens when, concentrated H2SO4 is added to calcium fluoride.

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  11. PH3 has lower boiling point than NH3. Why?

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  12. Nitrogen exists as diatomic molecule and phosphorous as P4.

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  13. How will you account for the following: NF3 is an exothermic compound ...

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  14. Present a comparative account of the following: Bond angle of H2O and ...

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  15. Present a comparative account of the following: Electron affinities of...

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  16. Why is helium used in inflating aeroplane tyres?

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  17. Name the noble gas which is radioactive.

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  18. Answer the following: Which reaction was used by Bartlett to prepare t...

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  19. Name the noble gas which is most abundant in atmosphere.

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  20. What happens when SO3 is passed through water?

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