Which of the following is incorrect regarding ozone?

Options

A. it is oxidized `H_(2)S` to `SO_(2)`
B. it oxidized alkaline `KI` to potassium iodate or to potasium periodate depending upon the amount
C. its oxidizes dry iodine to `I_(4)O_(9)` a yellow power
D. silver metal is blackened by ozone.

Answer

1

Explanation

`H_(2)S` is oxidized to sulphur `H_(2)S+O_(3)rarrH_(2)O+S+O_(2)`
Silver metal is blackened due to alternate oxidation of the metal and reduction of oxide
`2Ag+O_(3)rarrAg_(2)O+O_(2)`
`Ag_(2)O+O_(3)rarr2Ag+2O_(2)`
Other reaction are
`KI+3O_(3)rarr KIO_(3)+3O_(2)`
`KI+4O_(3)rarrKIO_(4)+4O_(2)`
`O_(3)rarrO_(2)+O]xx9`
`(2I_(2)+9Orarr I_(4)O_(9))/(2I_(2)+9O_(3)rarr I_(4)O_(9)+9O_(2))`