Consider the following statements regarding ZnS.
I. ZnS shows both cubic and hexagonal structures
II. Sphalerite exhibits ZnS structure
III. ZnS is a semiconductor
IV. ZnS can be precipitated from an aqueous acidic solution of zinc salts by passing H2S
The option containing the correct statements is
1
I, II and III only
2
II and IV only
3
I and III only
4
II, III and IV only