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How is the presence of SO2 detected?...

How is the presence of `SO_2` detected?

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It is pasśed through an acidified solution of potässium permangạnate which is, rendered colourless.by it. 5 SO_2~g+2 MnO_downrarr^-aq+2 H_2 O1 rarr Pink 5 SO_4^2-1aq+4 H^+aq+2 Mn^2 dotaq
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V PUBLICATION-The p-BLOCK ELEMENTS-QUESTION BANK
  1. What happens when SO2 is passed through an aqueous solution of Fe (III...

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  2. Comment on the nature of two S-O bonds in SO2 molecule. Are the two S:...

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  3. How is the presence of SO2 detected?

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  4. Why does ozone act as a powerful oxidising agent?

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  5. How is 'O3' estimated quantitatively?

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  6. Mention three areas in which H2SO4plays an important role.

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  7. Write the conditions to maximise the yield of H2SO4 in contact process...

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  8. Why is Ka2 less than Ka1 for H2SO4 in water.?

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  9. Give the reason for the bleaching property of chlorine.

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  10. Name two poisonous gases that can be prepared from chlorine gas

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  11. Why is ICl more reactive than I2 ?

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  12. Why is helium used in diving apparatus?

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  13. Balance the following equation: 'XeF6 + H2O -> XeO2F2 +HF

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

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  15. Discuss the general characteristics of Group 15 elements with referenc...

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  16. Why does the reactivity of nitrogen differ from phosphorus?

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  17. Discuss the trends in chemical reactivity of group 15 elements.

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  18. Why does NH3 form hydrogen bond but 'PH3 does not?

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  19. How is nitrogen prepared in the laboratory? Write the chemical equatio...

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  20. How is ammonia manufactured industrially?

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