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Chemistry Class 10 Chapter 14
Environmental Chemistry – The Atmosphere-8
1.
which one of the following metals is used in the catalytic converters?
All of these
Palladium
Rhodium
Platinum
2.
ozone is the allotropic form of?
Oxygen
Hydrogen
Carbon
Nitrogen
3.
how many oxygen atoms are present in an ozone molecule?
3
2
4
5
4.
which one of the following absorbs ultra violet radiations comming From the sun?
Nitrogen
Oxygen
Hydrogen
Ozone
5.
when ozone absorbs the UV radiations, it is broken down into?
O
2
and O
O
2
and H
2
O
2
and O
2
6.
which one of the following is an atomic oxygen?
O
3
O
2
None of these
O
7.
atomic oxygen reacts with molecular oxygen to form?
Ozone
Oxygen
Water
Carbon monoxide
8.
during the formation of ozone, heat is?
Both of these
Absorbed
Released
None of these
9.
the region in which the amount of ozone has been reduced is known as?
Ozone area
Ozone layer
Ozone region
Ozone hole
10.
where did the ozone hole first observed?
Australia
Europe
Antarctica
Asia
11.
when did the ozone hole first observed?
2000
1990
1980
2010
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