Chemistry · Group 13 to Group 18 Elements
Which of the following is not properly matched?
Which of the following is not properly matched?
- A. Formaldehyde - Carcinogenic
- B. Sulphur dioxide - Respiratory problems
- C. Nitrogen oxide - Brown air
- D. Photochemical smog - Green air
Step-by-step solution
Photochemical smog is typically brownish due to nitrogen dioxide and other pollutants, not green. Thus, the pairing with 'green air' is incorrect.
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