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Write the valency shell electronic confi...

Write the valency shell electronic configuration of VIIA elements.

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`ns^2np^5` where n is last orbit.
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MBD PUBLICATION-p-BLOCK ELEMENTS-QUESTION BANK
  1. Arrange the basicity in increasing order of TeO2, SO2 and SeO2

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  2. What happens when H2S passed through FeCl3 solution ?

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  3. Write the valency shell electronic configuration of VIIA elements.

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  4. Halogens do not occur free in nature. Explain.

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  5. How physical state of halogen changes with increase in atomic number ?

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  6. Write colours of all the halogen gases.

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  7. Write the bond length of HCl.

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  8. HCl is weaker than HI. Explain.

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  9. Which gas is produced when NaCl is heated with conc. H2SO4 ?

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  10. What happens when chlorine gas is passed through cold caustic soda ?

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  11. Which of the halogen forms the weakest hydracids ?

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  12. Which halogen is solid at the room temperature ?

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  13. HI is an oxidising or reducing agent ?

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  14. Fluorine is a strong oxidising agent because :

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  15. Arrange the halogen family in their decreasing order of electronegativ...

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  16. Write the equation for Cl2 which is bubbled through a solution of ferr...

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  17. What happens when Cl2 gas is passed into aqueous solution of KOH ?

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  18. In halogen family which element forms strongest hydrogen bonds ?

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  19. How will you prepare Cl2 from NaCl ?

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  20. Arrange the following in the order of property indicated for set. HF...

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