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For the function f(x)=x cos ""1/x, x ge ...

For the function `f(x)=x cos ""1/x, x ge 1 `which one of the following is incorrect ?

A

`O_3` oxidises PbS to `PbSO_4`.

B

`O_3` oxidises nitric oxide to nitrogen dioxide.

C

`O_3` oxidises aqueous KI at pH = 9.2.

D

The two oxygen-oxygen bond lengths in `O_3` are different.

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