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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
Which of the following is monosaccharide?
sucrose
lactose
maltose
galactose
Author:
rikazzz
Comment
Biochemistry Introduction
Which of the following must be present in our diet?
essential amino acids
non-essential amino acids
lipids
proteins
Author:
rikazzz
Comment
Chemical Equilibrium
The rate at which a substance reacts is directly proportional to its
product
active mass
reactant
catalysts
Author:
rikazzz
Comment
Chemical Industries
The last step of the Solvay process is
preparation of ammonical brine
carbonation
preparation of carbon dioxide and slaked lime
recovery of ammonia
Author:
rikazzz
Comment
Environmental Chemistry: Water
Step of sewage water treatment in which there are some aeration and organic material is converted to inorganic materials is called
primary sewage treatment
secondary sewage treatment
activated sludge treatment
chlorination
Author:
rikazzz
Comment
Environmental Chemistry: Atmosphere
Percentage of krypton in the air is
4ppm
3ppm
2ppm
1ppm
Author:
rikazzz
Comment
Biochemistry Introduction
Deficiency of vitamin C causes which disease?
night blindness
anemia and bleeding gums
scurvy
rickets and Osteomalacia
Author:
rikazzz
Comment
Chemical Equilibrium
Which of the following statements about catalysts is not true?
they speed up a chemical reaction
they reduce the time taken to reach equilibrium
they have effect on the position of equilibrium once it is reached
they have no effect on the position of equilibrium one it is reached
Author:
rikazzz
Comment
The Atmosphere
The temperature of the thermosphere is up to
120 °C
1200 °C
1800 °C
1000 °C
Author:
rikazzz
Comment
Biochemistry Introduction
A DNA (Deoxyribonucleic Acid) can store and transmit the
genetic information
cell information
blood
nerves
Author:
rikazzz
Comment
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