How is SO2 an air pollutant? from Chemistry The p-Block Elem
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    The p-Block Elements

    Multiple Choice QuestionsShort Answer Type

    501. Does the hydrolysis of XeF6 lead to a redox reaction?
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    502. Why does R3P = O exist but R3N = 0 does not (R = alkyl group)?
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    503. Give the disproportionation reaction of H3 PO3.
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    504. Which aerosols deplete ozone?
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    505. How is SO2 an air pollutant?

    SO2 is an air pollutant because its presence in air affects respiratory system of living organisms and causes bronchitis, asthma, lung cancer and pneumonia etc.
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    506. Why are halogens strong oxidising agents?
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    507. Arrange the following in the order of increasing bond enthalpy: F2’ Cl2 Br2, l2.
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    508. Why are halogens coloured?
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    509. Explain why inspite of nearly the same electronegativity, oxygen forms hydrogen bonding while chlorine does not.
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    510. Write the reactions of F2 and Cl2 with water.
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