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Answer the following: Why H2O is a liqui...

Answer the following: Why `H_2O` is a liquid whereas `H_2S` is gas at room temperature?

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ASSAM ACADEMIC CENTRE-The p-Block Elements-Example
  1. What happens when white Phosphourous is heated with NaOH solution in a...

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  2. What is the basicity of H3PO4?

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  3. Answer the following: Why H2O is a liquid whereas H2S is gas at room t...

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  4. Answer the following: Ozone acts as a powerful oxidizing agent. Give r...

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  5. Comment on the nature of S-O bonds formed in SO2 molecule. Are these b...

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  6. Mention two uses of H2SO4.

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  7. What are the essential conditions (temperature, pressure and catalyst)...

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  8. Why is Helium used in diving apparatus?

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  9. Complete the following equation: XeF6 + H2O rarr.

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  10. Why does Nitrogen show catenation properties less than phosphorus?

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  11. Write the disproportionation reaction of H3PO3.

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  12. Why fluorine formes only one oxacid HOF?

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  13. Write two uses of ClO2.

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  14. Arrange the following in the order of property indicated within bracke...

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  15. Arrange the following in increasing order if acid strength: HCl, HI, H...

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  16. rrange the following in the order of property indicated within bracket...

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  17. Mention two uses of Neon.

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

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  19. Which halogen has the highest electron gain enthalpy and which halogen...

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  20. Which of the following is more covalent SbCl5 or SbCl3?

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