1. Tardigrade
  2. Question
  3. Chemistry
  4. Given below are two statements: Statement-I: α and β 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:

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Q. Given below are two statements :
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:

JEE MainJEE Main 2021The Solid State

Solution:

$\alpha$ -sulphur $\ce{<=>[> 369 K][< 369 K]} \beta$ - sulphur

at room temperature $\alpha$-sulphur (Rhombic) is most stable form.