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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
Chemical Equilibrium
In Haber's process, the amount of ammonia yields is
0.4
0.9
0.33
0.22
Author:
rikazzz
Comment
Biochemistry Introduction
Two fatty acids that are components of oil are
stearic acid and oleic acid
butyric acid and caproic acid
palmitic acid and oleic acid
stearic and butyric acid
Author:
rikazzz
Comment
Characteristics of Acids Bases and Salts
Which of the following is not true about Bronsted-Lowery theory?
an acid is a proton donor
a base is a proton acceptor
all Arrhenius acids are also acids in the Bronsted-lowery theory
all the bases included in Bronsted-lowery theory except oh- are also Arrhenius bases
Author:
rikazzz
Comment
Organic Chemistry
Alcohols (C
n
H
2n+1
OH) are formed by the attachment of
OH group to hydrocarbon chain
HX group to hydrocarbon chain
O to hydrocarbon chain
H to hydrocarbon chain
Author:
rikazzz
Comment
Environmental Chemistry: Atmosphere
Approximately, what percentage of water vapor is contained by the air in the tropical rain forest?
0.01
0.02
0.03
0.04
Author:
rikazzz
Comment
Environmental Chemistry: Water
Water which forms scum with soap is called
hard water
soft water
distilled water
non distilled water
Author:
rikazzz
Comment
Environmental Chemistry: Water
Process in which water is treated with slaked lime and alum is called
sedimentation
coagulation
filtration
chlorination
Author:
rikazzz
Comment
Biochemistry Introduction
Vitamin B is necessary for
eyes and skin
energy production in cells
healing wounds and preventing colds
bones and teeth
Author:
rikazzz
Comment
Chemical Industries
The second step of metallurgy is
crushing, grinding or pulverizing of the ore
concentration of the ore
extraction of metal
refining of metal
Author:
rikazzz
Comment
Chemical Industries
Which of the following is used as cylinder gas for cooking?
Liquefied petroleum gas (LPG)
petrol
naphtha
kerosene
Author:
rikazzz
Comment
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