MCQ
$K_4[Fe(CN)_6]$ reacts with ozone to give
- A$Fe_2O_3$
- B$Fe(OH)_2$
- ✓$K_3[Fe(CN)_6]$
- D$KNO_3$
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Statement$-I$ $: \alpha$ and $\beta$ forms of sulphur can change reversibly between themselves with slow heating or slow cooling.
Statement$-II :$ At room temperature the stable crystalline form of sulphur is monoclinic sulphur.
In the light of the above statements, choose the correct answer from the options given below:

The product ' $X$ ' is: