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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
Organic Chemistry
The reaction rates of organic compounds are often slow due to
hydrogen atoms
carbon atoms
ionic bonding
covalent bonding
Author:
rikazzz
Comment
Biochemistry Introduction
How many different amino acids are involved in protein synthesis?
10
20
30
40
Author:
rikazzz
Comment
Chemical Equilibrium
The ratio of the product of the concentration of products to the product of the concentration of reactants is called
equilibrium constant
equilibrium ratio
reverse reaction
forward reaction
Author:
rikazzz
Comment
Chemical Industries
Process in which metal ions are reduced to free metals is called
roasting
smelting
Bessemerization
concentration
Author:
rikazzz
Comment
Organic Chemistry
The organic compound used for artificial ripening of fruits is
methane
ethane
propane
acetylene
Author:
rikazzz
Comment
Hydrocarbons
What is produced by the complete combustion of an alkane?
carbon dioxide and water
carbon dioxide, water and heat
carbon monoxide, carbon and water
hydrogen and carbon dioxide
Author:
rikazzz
Comment
Biochemistry Introduction
Which of the following is the key to the ability of DNA to store genetic information and to pass it on from generation to generation?
double stranded structure of DNA
deoxyribose sugar
phosphate unit
nitrogen base
Author:
rikazzz
Comment
Acids Bases and Salts
The pH at which methyl red changes color is
7
5.5
3.8
9
Author:
rikazzz
Comment
Biochemistry Introduction
Cellulose is obtained from?
animals
microorganisms
plants
bacteria
Author:
rikazzz
Comment
Environmental Chemistry: Atmosphere
Which of the following is the layer of atmosphere in which we live?
troposphere
stratosphere
mesosphere
thermosphere
Author:
rikazzz
Comment
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