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Chemistry
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Acids Bases and Salts
23
Biochemistry Introduction
217
Characteristics of Acids Bases and Salts
114
Chemical Industries
66
Environmental Chemistry: Atmosphere
95
Environmental Chemistry: Water
61
Chemical Equilibrium
46
Hydrocarbons
86
Organic Chemistry
92
The Atmosphere
25
Show/Hide Answers
Hydrocarbons
Which of the following is not true about alkenes?
they are unsaturated hydrocarbons
they are insoluble in water
they are soluble in organic solvents such as alcohol
they are soluble in water
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Characteristics of Acids Bases and Salts
What happens to the solution when pH is greater than 7?
it becomes acidic
it becomes basic
it becomes neutral
it becomes amphoteric
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Biochemistry Introduction
Which of the following is a dextrose sugar?
fructose
Manose
lactose
maltose
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Environmental Chemistry: Atmosphere
Which of the following is the second layer of atmosphere as one moves upwards from the Earth's surface?
troposphere
stratosphere
mesosphere
thermosphere
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The Atmosphere
Percentage of argon in the air is
0.78
0.21
0.0093
0.0004
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Chemical Industries
Which of the following is used as a lubricant for machines and engines?
diesel
lubricating oil
fuel oil
bitumen
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Hydrocarbons
Trichloromethane is also called
chlorophyll
chloroplast
chloromethane
chloroform
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Biochemistry Introduction
Which of the following is a code that stores information which is used to produce proteins?
structure of the base pairs
order of the base pairs
number of the base pairs
number of hydrogen
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Hydrocarbons
Which of the following is used as an anesthetic?
dichloromethane
tetra chloromethane
methyl chloride
chloroform
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Environmental Chemistry: Atmosphere
Presence of which of the following can be felt near the photocopier, television set, microwave oven, etc.?
chlorofluorocarbons (chlorofluorocarbons (CFCs))
methane
ozone
lead compounds
Author:
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