1.

Pick out the incorrect staterment.

Answer»

`I_(2)O_(5)` is formed by heating `HIO_(3)", to "170^@C`
`I_(2)O_(5)` is stable to heat
`I_(2)O_(5)` is used in the estimation of CO
`I_(2)` combines with `O_(3)` to form `l_(4)O_(9)` When heated above `75^(@)C", it "(I_4O_5)` decomposes to form lOs

Solution :It decomposes when heated to `300^(@)C`.
`2I_(2)O_(5) overset(300^(@)C)to 2I_(2)+5O_(2)`
(a) `2HIO_(3) overset(170^(@)C)to I_(2)O_(5)+H_(2)O`
(c) `I_(2)O_(5)` oxidizes CO to `CO_(2)` quantitatively at room TEMPERATURE, liberating `I_(2)`, which can be tirated with SODIUM thoiosulphate. `I_(2)O_(5)+5CO to 5CO_(2)+I_(2)`
(d) `2I_(2)+3O_(3)to I_(4)O_(9)`
`4I_(4)O_(9) overset( GT 75^(@)C)to 6I_(2)O_(5)+2I_(2)+3O_(2)`


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