Question

Which of the following statements is true about photochemical smog ?

• A. It is reducing in nature.
• B. It is formed in winter.
• C. It is a sulphurous smog.
• D. Components of the smog, NO and O3, irritate the nose and throat and their high concentration causes headache, chest pain, dryness of the throat, cough and difficulty in breathing.

Answer 1

Answer: (D)

Components of the smog, NO and O3, irritate the nose and throat and their high concentration causes headache, chest pain, dryness of the throat, cough and difficulty in breathing.

Answer 2

Photochemical somg is occures in warm, dry and sunny climate. It has high concentration of NO, NO2 and O3. Their low concentration causes irritation in nose and throat and their high concentration causes headache, chest pain, cough and diffculty in breathing.