Question

The most stable allotropic form of sulphur is:
(a) Rhombic sulphur
(b) Flowers of sulphur
(c) Platic sulphur
(d) Mono clinic sulphur

Answer 1

rhombic sulphur. it is the answer of the question

Answer 2

NH3 is a pyramid shape that has been denoted by central atom N and includes 3 bonds pairs that has one lone pair.

This is known as SP3 hybridised and better that has been shape but includes that occupied by a lone pair which does not tetrahedron shape but includes one of its ends with occupied by a lone pair for structure.