MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic Chemistryp -Block Elements (group 15-18)O and O

Which of the following is/are correct?

A.O₃ + moist iodine HIO₃

B.FeCl₃ + H₂S → colloidal sulphur

C.O₃ + Ag → black silver

D.All✓ Correct

Explanation

3 2 2 3 2 5 2 5 Moist O H O I HIO O → 3 2 2 2 2 2 Colloidal FeCl H S FeCl HCl S → 3 2 2 2 Black O Ag Ag O O →

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