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Online Tests
General Science 9th Class English Medium Chapter 2 Online Test MCQs With Answers
Question # 1
The amout of carbon dioxide int eh air is increased by.
Choose an answer
Photosynthesis
Respiration
Burning
Evaporation
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Question # 2
The percentage of Neon by volume is.
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0.002
0.9
0.02
0.00055
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Question # 3
An essential component of haemoglobin
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sodium
Neon
iron
Aluminium
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Question # 4
Which gas is slightly soluble in water.
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Neon
Carbon di oxide
Argon
Oxygen
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Question # 5
Teh process of converting atompspheric nitrogen to useable from is called.
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Nitrogen cycle.
Carbon cycle
Nitrogen fixation
Water cycle
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Question # 6
The process which increases the temperature in the temperatureis called
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Photosynthesis
Oxidation
Greenhouse effect
Evaporation
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Question # 7
Bucky Ball is teh third form of pure.
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Carbon
Graphite
Magnesium
Diamond
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Question # 8
Ice floats on the surface of water due to.
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Higher density
Lower density
Normal density
Very High density
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Question # 9
The form of carbon which is not crystalline is.
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Charcoal
Graphite
Bucky Ball
Diamond
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Question # 10
Iodine .......... 131 is used in treat the........................
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Cancer
Bone growth
Thyroid
Brain tumor
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Question # 11
What type of liquid has abnormal freezing and boiling point.
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Water
Juice
Petrol
Diesel
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Question # 12
The process which increases the amount of carbon dioxide in air is called
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photosynthesis
respiration
oxidation
vaporization
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Question # 13
The contents of sodium in leaf tissus vary from.
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0.01 - 10%
10-15%
12-16 %
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Question # 14
The sun almost entirely consists to the element
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oxygen
iron
phosphorus
hydrogen
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Question # 15
The percentage of nitrogen in air is
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76%
77%
78%
79%
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Question # 16
The density of ice at o°C is & nbsp
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0.918g/cm3
0.618g/cm3
0.718g/cm3
0.8/8 g/cm3
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Question # 17
One of the essential part of all living things on the earth
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carbon
nitrogen
hydrogen
oxygen
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Question # 18
Nitrogen occur in the atmosphere as................. molecules.
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Triatomic
Diatomic
Polyatomic
None of these
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Question # 19
If a key is stiff in a lock, rub the end of the key a soft pencil, which types of elements we obtain.
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Graphite
Silver
Gold
Paltinum
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