Given below are two statements:

Statement I: and forms of sulphur can change reversibly between themselves with slow heating or slow cooling.

Statement II: At room temperature the stable crystalli

Question

Given below are two statements:

Statement I:  and  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:

Canvas Classes · Accepted Answer

Statement I: -sulphur (rhombic) and -sulphur (monoclinic) can interconvert reversibly:
- Below 369 K (96°C): -sulphur is stable
- Above 369 K: -sulphur is stable
- Slow heating/cooling allows reversible interconversion ✓

Statement II: At room temperature (below 369 K), the stable form is rhombic sulphur (-sulphur), NOT monoclinic sulphur. Monoclinic sulphur is stable above 369 K. Statement II is false. ✗

Answer: Option (2) — Statement I is true but Statement II is false

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