MCQ
Which of the following is a suboxide
- A$B{a_2}O$
- B$CaC{O_3}$
- ✓${C_3}{O_2}$
- D$ZnO$
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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: