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Question
Which of the following gases, in pure form, has a slightly blue colour?
Which of the following gases, in pure form, has a slightly blue colour?
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Solution
The correct option is C Ozone
Ozone gas has a slightly blue color. It is dark blue in a liquid form and purple-black in solid form.The color comes from the fact that it absorbs all wavelengths of light other than those in the blue region. As the phase changes, the molecules get closer together, shifting the area of absorption, changing the color of the material.
Ozone gas has a slightly blue color. It is dark blue in a liquid form and purple-black in solid form.
The color comes from the fact that it absorbs all wavelengths of light other than those in the blue region. As the phase changes, the molecules get closer together, shifting the area of absorption, changing the color of the material.
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