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How is the presence of SO2 detected?...

How is the presence of `SO_2` detected?

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The correct Answer is:
`Ca(OH)_(2)+SO_(2)toCaSO_(3)darr(white)+H_(2)O`
`CaSO_(3)+H_(2)O+SO_(2)("excess")toCa(HSO_(3))_(2)` milkiness disappears.
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RESONANCE-P BLOCK ELEMENTS-ALP PART 1 Comprehension # 1 SUBJECTIVE
  1. In P(4)O(10) the number of oxygen atoms bonded to each phosphorus atom...

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  2. Write the names of substances which have higher oxidation potential th...

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  3. Why sulphur is able to show oxidation state of +4 and +6 with fluroine...

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  4. Oxygen exists as a gas, while sulphur exists as a solid Why ?

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  5. How is the presence of SO2 detected?

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  6. Which aeroslos deplete ozone ?

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  7. Oxygen almost variably and oxidation state of -2 but the other members...

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  8. An aqueous solution of a gas (X) gives the following reactions : (i)...

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  9. On heating rhombic sulphur it melts but viscosity of liquid increases ...

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  10. {:(,underset(("Oxy acids of phosphoros"))("Column I"),,underset(("Char...

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  11. {:("Column I","Column II"),((A)PbO(2)+HNO(3)to,(p)"One of the products...

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  12. {:("Column I","Column II"),((A)2NO(2)overset("Cool")to,(p)"One of the ...

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  13. P(4) reduces copper sulphate solution to metallic copper.

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  14. Red phosphorus catches fire at room tempt.

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  15. Hyderoxylamine undergoes disproportination reaction rapidly in alkalin...

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  16. N(2)O does not from hyperitrite with alkali.

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  17. In alkaline solution, with Devarda's alloy (Cu//Al//Zn) nitrites are r...

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  18. N(2)O is an acid anhydride of HNO(3).

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  19. SO(3) does not turn starch iodate paper blue.

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  20. Reduction of bisulphite solution and SO(2) with zin dust yields sulpha...

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