Which of the following statements are incorrect ?A. `SO_(3)` is a stronger oxidising agent and more acidic than `SO_(2)`.B. Selenium forms only two oxoacids i.e., selenous acid `(H_(2)SeO_(3))` and selenic acid `(H_(2)SeO_(4))`.C. The acidic strength and oxidising power of oxoacids is greater in +6 oxidation state than in +4 oxidation state.D. The thermal stability of oxides of group 16 elements decreases in the order : `SO_(2) gt SeO_(2) gt TeO_(2) gt PoO_(2)`

Which of the following statements are incorrect ?A. `SO_(3)` is a stro

1.	Which of the following statements are incorrect ?A. `SO_(3)` is a stronger oxidising agent and more acidic than `SO_(2)`.B. Selenium forms only two oxoacids i.e., selenous acid `(H_(2)SeO_(3))` and selenic acid `(H_(2)SeO_(4))`.C. The acidic strength and oxidising power of oxoacids is greater in +6 oxidation state than in +4 oxidation state.D. The thermal stability of oxides of group 16 elements decreases in the order : `SO_(2) gt SeO_(2) gt TeO_(2) gt PoO_(2)`
Answer» Correct Answer - D Thermal stability of the oxides of group 16 elements decreases in the order: `SO_(2) gt TeO_(2) gt SeO_(2) gt PoO_(2)` and not in the order as mentioned. `TeO_(2)` decomposes at temperature `gt 733^(@)C" while "SeO_(2)" has " ~ 600^(@)C` as the decomposition temperature. `PoO_(2)` decomposes at `500^(@)C`

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