Which of the following statements are correct for 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 H2SO4 with metal sulphide.
NCERT Class XII
Chemistry - Exemplar Problems
Chapter 7. The p-block elements