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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
When do alkanes readily react with halogens?
in darkness
in sunlight
all the time
none of above
Author:
rikazzz
Comment
Chemical Industries
The boiling point of naphtha is
below 20 °C
35 °C to 70 °C
70 °C to 120 °C
170 °C to 250 °C
Author:
rikazzz
Comment
Environmental Chemistry: Atmosphere
Group of chemically unreactive compounds that are commonly used as solvents are called
chlorofluorocarbons (CFCs)
functional groups
alkyl groups
lead compounds
Author:
rikazzz
Comment
Biochemistry Introduction
Which of the following causes pain in bones when taken in excess amount?
vitamin A
vitamin B
vitamin C
vitamin D
Author:
rikazzz
Comment
Environmental Chemistry: Water
How much percentage of the Earth's crust is covered by water?
0.69
0.71
0.8
0.75
Author:
rikazzz
Comment
Biochemistry Introduction
Starch and cellulose are
crystalline solids
amorphous solids
liquids
gasses
Author:
rikazzz
Comment
Biochemistry Introduction
Long-chain carboxylic acids are named as
lipids
fatty acids
phospholipids
cholesterol
Author:
rikazzz
Comment
Biochemistry Introduction
The linkage which joins two amino acid units is called
peptide bond
covalent bond
ionic bond
hydrogen bond
Author:
rikazzz
Comment
Biochemistry Introduction
Which of the following is an example of polysaccharides?
glucose
cellulose
fructose
maltose
Author:
rikazzz
Comment
Environmental Chemistry: Atmosphere
The occurrence of weather is in
troposphere
stratosphere
mesosphere
thermosphere
Author:
rikazzz
Comment
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