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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
Biochemistry Introduction
Dry skin is caused by the deficiency of
vitamin A
vitamin B
vitamin C
vitamin D
Author:
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Comment
Biochemistry Introduction
Which of the following are glucose and fructose?
monosaccharides
oligosaccharides
polysaccharides
starch
Author:
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Comment
Organic Chemistry
An alkane with molecular formula C5H12 is called
butane
pentane
hexane
heptane
Author:
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Comment
Environmental Chemistry: Atmosphere
What is the term used for the envelope of gases and water vapor surrounding the planet earth?
air
atmosphere
environment
biome
Author:
rikazzz
Comment
Characteristics of Acids Bases and Salts
Taste of acid is
sour
sweet
bitter
it is tasteless
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Comment
Environmental Chemistry: Atmosphere
What is the term used for the area in which the amount of ozone has been reduced?
black hole
worm hole
ozone hole
red hole
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Comment
Biochemistry Introduction
A class of nitrogen-containing compounds in the nuclei of cells is called
deoxyribonucleic acid
ribonucleic acid
nucleic acid
none of above
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Comment
Hydrocarbons
How does iodine react?
explosively
slowly in dark but rapidly in strong sunlight
requires high temperature or strong sun light
essentially unreactive
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Comment
Biochemistry Introduction
Which of the following is true about polysaccharides?
they are white crystalline solids
they have sweet taste
they are soluble in water
they are non-reducing in nature
Author:
rikazzz
Comment
Chemical Industries
Naturally occurring metallic compounds are called
metalloids
minerals
hard solids
soft solids
Author:
rikazzz
Comment
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