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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
Environmental Chemistry: Atmosphere
What is the color of nitric oxide?
colorless
pink
brown
reddish brown
Author:
rikazzz
Comment
Acids Bases and Salts
As an electrolyte, water is
strong
neutral
weak
good insulator
Author:
rikazzz
Comment
Organic Chemistry
What is the term used for hydrocarbons containing carbon-carbon multiple bonds?
saturated hydrocarbons
unsaturated hydrocarbons
alkanes
none of above
Author:
rikazzz
Comment
Characteristics of Acids Bases and Salts
How many replaceable H-atoms are present in Carbonic acid?
two
three
four
five
Author:
rikazzz
Comment
Environmental Chemistry: Water
Which of the following is an intestinal disease caused by bacteria such as E.coli?
cholera
dysentery
jaundice
hepatitis
Author:
rikazzz
Comment
Characteristics of Acids Bases and Salts
What is the pH of onion?
5.5 – 7.0
6.5 – 7.0
6.0 – 7.5
6.5 – 7.5
Author:
rikazzz
Comment
Environmental Chemistry: Water
What percentage of sodium chloride is present in seawater?
0.02
0.1
0.034
0.01
Author:
rikazzz
Comment
Biochemistry Introduction
Which of the following activates more than 100 different enzymes?
vitamin A
vitamin B
vitamin C
vitamin D
Author:
rikazzz
Comment
Biochemistry Introduction
Which of the following is necessary for proper bone and tooth growth?
vitamin A
vitamin B
vitamin C
vitamin D
Author:
rikazzz
Comment
Environmental Chemistry: Water
What is the first step of raw water treatment?
sedimentation
coagulation
filtration
chlorination
Author:
rikazzz
Comment
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