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Important questions on Ozone

Which layer of atmosphere contains ozone in it?

A
Hydrosphere
B
Lithosphere
C
Stratosphere
D
None of these
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The layer of atmosphere between to above the sea level is called as:

A
troposphere
B
mesosphere
C
stratosphere
D
thermosphere
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Ozone layer is harmful when present in ____ and protects life when present in____ .

A
Troposphere, stratosphere
B
Troposphere, mesosphere
C
Stratosphere, mesosphere
D
Mesosphere, thermosphere
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Identify the incorrect statement from the following

A
Oxides of nitrogen in the atmosphere can cause the depletion of ozone layer
B
Ozone absorbs the intense ultraviolet radiations of the sun
C
Depletion of ozone layer is because of its chemical reactions with  CFC
D
Ozone absorbs infrared radiations
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Ozone is present as a chief constituent in which region of the atmosphere?

A
Troposphere
B
Stratosphere
C
Mesosphere
D
Thermosphere
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In which part of atmosphere, ozone layer is present?

A
Stratosphere
B
Troposphere
C
Mesosphere
D
Thermosphere
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Assertion

Chlorine sinks are formed during summer, hence, preventing ozone depletion.

Reason

In summer season, nitrogen dioxide and methane react with chlorine monoxide and chlorine radicals.

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C
Assertion is correct but Reason is incorrect
D
Both Assertion and Reason are incorrect
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In which part of the atmosphere, is present?

A
Mesosphere
B
Stratosphere
C
Troposphere
D
Lithosphere
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