Question

Match column-I with column-II and select the correct answer using the codes given below the lists.

Answer 1

Allotropes of sulfur:

(A) Engel's sulfur is the sulfur ring in $cyclo-S_6$. It has a "chair" conformation, reminiscent of the chair form of cyclohexane. All of the sulfur atoms are equivalent. Hence, A matches to 1.

(B) Rhombic sulfur is yellow solid consisting of $S_8$ puckered rings. The thermodynamically stable form at ordinary temperatures. Hence, B matches to 4.

(C) Monoclinic sulphur is yellow crystalline solid, consisting of $S_8$ puckered rings. Hence, C matches to 3.

(D) The most commonly encountered form of sulfur is the orthorhombic polymorph of $ S_8$, which adopts a puckered ring or "crown" structure. Hence, D matches to 2.