ozone (O3) and oxygen (O2) molecules in the stratosphere absord ultraviolet (UV)

Question

ozone (O3) and oxygen (O2) molecules in the stratosphere absord ultraviolet (UV) light emitted from the sun and protect us from harmful radiation. the UV light is adsorbed by these molecules based on the amount of energy and the wavelength of the UV light. Based on the chemistry in the ozone layer, select all statements that are false

# UV-A (320-400 nm) has the longest wavelength, highest energy and is the most harmful form of UV radiation.

# The oxygen-Oxygen bond in oxygen (O2) is stronger than in ozone(O3) and absorbs UV light at shorter wavelegths

#UV-C (200-280 nm) has the highest energy and is capable of breaking the bounds in ozone and oxygen molecules

# The oxygen-oxygen bond in ozone (O3) is stronger than the oxygen-oxygen bond in oxygen (O2) and requires more energy from UV light to break the bond.

#the amount of energy associated with UV-B (280-320 mn) is weaker that of UV-C (200-280 nm) and is absorbed primarily by ozone (O3) by breaking bonds in the molecule.

Explanation / Answer

# UV-A (320-400 nm) has the longest wavelength, highest energy and is the most harmful form of UV radiation.

This stamen is false because these are least harmful rays which are diminished by sunscreen only.

# The oxygen-Oxygen bond in oxygen (O2) is stronger than in ozone(O3) and absorbs UV light at shorter wavelengths

This stamen is true because the oxygen-Oxygen bond in ozone are 1.5 bonds. Thus the oxygen-Oxygen bond in O2 is stronger and require s more energy to break

#UV-C (200-280 nm) has the highest energy and is capable of breaking the bounds in ozone and oxygen molecules

This stamen is true UV-C (200-280 nm) has the highest energy which is nearly absorbed by Oxygen

# The oxygen-oxygen bond in ozone (O3) is stronger than the oxygen-oxygen bond in oxygen (O2) and requires more energy from UV light to break the bond.

This stamen is false because the oxygen-Oxygen bond in ozone are 1.5 bonds. Thus the oxygen-Oxygen bond in O2 is stronger and require s more energy to break

#the amount of energy associated with UV-B (280-320 mn) is weaker that of UV-C (200-280 nm) and is absorbed primarily by ozone (O3) by breaking bonds in the molecule.

This statement is true because UV-B (280-320 mn) is absorbed by O3 in atmosphere while UV-C (200-280 nm) is completely absorbed by O2

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