Multiple choice

There are several known allotropes of oxygen. Among these ___________ is the diamagnetic form of molecular oxygen .

  1. dioxygen

  2. singlet oxygen

  3. triatomic oxygen

  4. tetraoxygen
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Singlet oxygen is the common name used for the diamagnetic form of molecular oxygen which is less stable than the normal triplet oxygen. Because of its unusual properties, singlet oxygen can persist for over an hour at room temperature, depending on the environment.

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