WorksheetsAbout Oxygen 2
Total questions: 18
Worksheet time: 9mins
Name
Class
Date
1.
Which substance supports burning?
a)
Hydrogen
b)
Nitrogen
c)
Oxygen
d)
Carbon Dioxide
2.
What is the percentage existence of oxygen gas in air?
a)
%78
b)
%32
c)
%18
d)
%21
3.
Which of the following method is one of the laboratory preparation of oxygen gas?
a)
Decomposition of KClO3
b)
Decomposition of H2S
c)
Combination of H and O
d)
Distillation of H2O
4.
Which of the following is not an use of oxygen?
a)
For cutting metals
b)
In hospitals
c)
As fuel for cars
d)
For respiration
5.
What is the test for Oxygen gas?
a)
Litmus paper
b)
Glowing splint
c)
"Pop" sound
d)
Red flame
6.
Which of the following oxide is different than the others?
a)
SO3
b)
CO2
c)
CaO
d)
P2O5
7.
Which of the following oxide is the one of the neutral oxide?
a)
Al2O3
b)
NO2
c)
Na2O
d)
H2O
8.
When carbon dioxide reacts with water which of the following acid is formed?
a)
H2CO3
b)
HCl
c)
HNO3
d)
H2SO3
9.
Which oxide is used to reduce acidity of soil in agriculture?
a)
Na2O
b)
CO2
c)
SO2
d)
CaO
10.
Which layer of air allows all living and nonliving activities to occur in?
a)
Thermosphere
b)
Troposphere
c)
Mezosphere
d)
Stratosphere
11.
Which of following air pollutant gases causing "greenhouse" effect?
a)
SO3
b)
NO2
c)
CO
d)
CO2
12.
Which of the hydrogen isotope is found only on the stars?
a)
Protium
b)
Dueterium
c)
Tritium
d)
Ozon
13.
Which of the followings is not an abundance of hydrogen in nature?
a)
Hydrides
b)
Water
c)
Air
d)
Carbonates
14.
Which of the following hydrogen production methode is used widely?
a)
Natural gas
b)
Electrolysis
c)
Fractional distillation
d)
Petroleum
15.
Which property of water makes water "universal solvent?
a)
Surface tension
b)
Heat Capasity
c)
Dissolving ability
d)
Density
16.
Which of the followings is not an use of hydrogen gas?
a)
As fuel for cars and rockets
b)
In production of fertilizers
c)
In production of margarine
d)
for divers, climbers and astronauts
17.
Which of following areas demands the most water?
a)
Agriculture
b)
Power plants
c)
Chemical Industry
d)
Domestic and institutional places
18.
Which process in water cycle returns water back to the surface of Earth?
a)
Condensation
b)
Evaporation
c)
Precipitation
d)
Sublimation
100 %
