Chemistry - Complete s-block Question with Solution | TestHub

The question asks to identify the potassium oxide that is red in color. While potassium peroxide (K₂O₂) is yellowish-white and the superoxide (KO₂) is yellow, potassium sesquioxide (K₂O₃) is specifically characterized by its distinct red or reddish-brown color. Potassium ozonide (KO₃) is also red-orange, but K₂O₃ is the standard answer for this specific classification in competitive chemistry. Therefore, the correct answer is Option (D) K₂O₃.