Which of the following statements accurately describe the allotropes of sulphur? — p Block Elements Chemistry Question

💡 Solution & Explanation

Rhombic sulphur is the most stable form at room temp. Above 369 K (transition temp), it converts to monoclinic; cooling it reverses the change. Both crystalline forms consist of puckered $S_8$ rings (so C is false). At ~1000 K, $S_2$ dominates the vapor phase and is paramagnetic like $O_2$ due to unpaired electrons in $\pi^*$ orbitals.