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How is the presence of SO2 detected?...

How is the presence of `SO_2` detected?

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DINESH PUBLICATION-THE P-BLOCK ELEMENTS -N.C.E.R.T In-Text Questions
  1. Why is H(2)O a liquid and H(2)S a gas ?

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  2. Which of the following does not react with oxygen directly? Zn,Ti,Pt,F...

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  3. Complete the following reactions : (i) C(2)H(4)+O(2) to (ii) Al +O...

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  4. Why does O(3) act as a powerful oxidising agent ?

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  5. How is O(3) estimated quantitatively ?

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  6. What happens when sulphur dioxide gas is passed through an aqueous sol...

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  7. Comment on the nature of two S-O bonds formed in SO(2) molecule. Are t...

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  8. How is the presence of SO2 detected?

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  9. Mention three areas in which H(2)SO(4) plays an important role.

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  10. Write the conditions to maximise the yield of H2SO4 by contact process...

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  11. If osmotic pressure of 1M aqueous solution of H(2)SO(4) at 500K is 90....

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  12. Considering the parameters such as bond dissociation enthalpy, electro...

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  13. Give two examples to show the anomalous behaviour of fluorine.

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  14. Sea is the greatest source of some halogens. Comment.

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  15. Give reason for the bleaching action of Cl(2).

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  16. Name two poisonous gases which can be prepared from chlorine gas.

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  17. Why is Icl more reactive than I(2) ?

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  18. Why is helium used in diving apparatus ?

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  19. Balance the equation : XeF(6)+H(2)O to XeO(2)F(2)+HF

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

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