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Question

Which one of the following statements is false ?
  1. O3 layer is destroyed by CFCs
  2. Smog reduces visibility
  3. O3 involved in photochemical smog
  4. A product of photochemical smog is CO2

A
O3 layer is destroyed by CFCs
B
O3 involved in photochemical smog
C
Smog reduces visibility
D
A product of photochemical smog is CO2
Solution
Verified by Toppr

Chlorofluoro carbon causes depletion of ozone.

Photochemical smog is a unique type of air pollution which is caused by reactions between sunlight and pollutants like hydrocarbons and nitrogen dioxide.

Although photochemical smog is often invisible, it can be extremely harmful, leading to irritations of the respiratory tract and eyes.

Therefore, correct option is C.

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