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Which of the following statements about the allotropes of sulfur is correct?
Rhombic sulfur and monoclinic sulfur are identical in all their physical and chemical properties.
Amorphous sulfur has a crystalline structure.
Plastic sulfur is a relatively new allotrope of sulfur that was discovered in the 21st century.
Sulfur vapor can exist in multiple allotropes at the same time.
Answers (1)
Option D is correct because sulfur vapour can exist in multiple allotropes at the same time, depending on the temperature and pressure conditions. This phenomenon is known as allotropy.
Explanation of incorrect option
Statement A is incorrect because rhombic sulfur and monoclinic sulfur differ in their crystal structure and other physical properties.
Statement B is incorrect because amorphous sulfur lacks a crystalline structure.
Statement C is incorrect because plastic sulfur has been known for a long time and has been studied extensively.
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