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प्रश्न
Which of the following statements are correct for \[\ce{SO2}\] gas?
(i) It acts as bleaching agent in moist conditions.
(ii) It’s molecule has linear geometry.
(iii) It’s dilute solution is used as disinfectant.
(iv) It can be prepared by the reaction of dilute \[\ce{H2SO4}\] with metal sulphide.
उत्तर
(i) It acts as bleaching agent in moist conditions.
(iii) It’s dilute solution is used as disinfectant.
Explanation:
\[\ce{SO2}\] acts as a bleaching agent in presence of moisture.
This is due to reducing nature of \[\ce{SO2 + 2H2O -> H2SO4 + 2H}\]
Coloured matter + H `→` colourless matter. Its dilute solution is used as disinfectant.
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