Which is a triatomic allotrope of oxygen?

Question

Which is a triatomic allotrope of oxygen??  
A. Ozone  
B. Water  
C. Acidic oxide  
D. Carbon dioxide

Accepted Answer

Correct Answer: (A)Ozone. 
Rationale: The triatomic allotrope of oxygen is ozone.Allotropes are different structural forms of the same element that exist in the same physical state. In the case of oxygen, allotropes are made up entirely of oxygen atoms but differ in how those atoms are bonded together. The most common form of oxygen in the atmosphere is diatomic oxygen (O₂), but oxygen can also exist in a triatomic form, where three oxygen atoms are bonded together. This triatomic form is known as ozone (O₃).A. OzoneOzone is a molecule composed of three oxygen atoms (O₃), making it triatomic. Because it consists solely of oxygen atoms arranged in a different molecular structure than O₂, it qualifies as an allotrope of oxygen. Ozone has distinct chemical and physical properties compared to diatomic oxygen, such as a sharp odor and a strong oxidizing ability, which arise from its unique triatomic structure.B. WaterWater (H₂O) is a compound made of hydrogen and oxygen atoms chemically bonded together. Although it contains oxygen, it is not composed exclusively of oxygen atoms. Allotropes must consist of only one element, so water cannot be considered an allotrope of oxygen.C. Acidic oxide“Acidic oxide” is not a specific substance but a general classification of oxides—usually nonmetal oxides—that react with water to form acids (such as sulphur dioxide or carbon dioxide). This term refers to a category of compounds, not a distinct molecular form of elemental oxygen, and therefore cannot be an allotrope.D. Carbon dioxideCarbon dioxide (CO₂) is a compound made of carbon and oxygen atoms. Because it contains more than one element, it does not meet the definition of an allotrope. Allotropes must be different structural forms of the same element only.ConclusionA triatomic allotrope of oxygen must consist of three oxygen atoms bonded together and contain no other elements. Ozone (O₃) meets this definition andrepresents a distinct molecular form of elemental oxygen, different from the more common diatomic oxygen (O₂).

Which is a triatomic allotrope of oxygen?

A
Ozone

B
Water

C
Acidic oxide

D
Carbon dioxide

The triatomic allotrope of oxygen is ozone.

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Which is a triatomic allotrope of oxygen?

A Ozone B Water C Acidic oxide D Carbon dioxide

The triatomic allotrope of oxygen is ozone.

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A
Ozone

B
Water

C
Acidic oxide

D
Carbon dioxide