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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
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Biochemistry Introduction
Which of the following is not true about RNA?
it is synthesized by DNA
it has deoxyribose sugar
it has single strand
it is responsible for directing synthesis of new proteins
Author:
rikazzz
Comment
Biochemistry Introduction
How many types of vitamins are there?
two
three
four
five
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Hydrocarbons
What is the color of the flame with which most alkanes burn?
orange
yellow
red
blue
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Comment
The Atmosphere
The upset caused in the natural balance of concentration of greenhouse gases is called
pollution
global warming
atmospheric poisoning
earth heating
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Biochemistry Introduction
Which of the following is true about oligosaccharides?
they are white crystalline solids
they are insoluble in water
they cannot be hydrolyzed
they have sour taste
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Comment
Environmental Chemistry: Water
What is the second step of raw water treatment?
sedimentation
coagulation
filtration
chlorination
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rikazzz
Comment
Chemical Equilibrium
What is the representation of a reversible reaction?
single arrow
double arrows
bar
none of above
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rikazzz
Comment
Environmental Chemistry: Atmosphere
Which of the following is the Third layer of atmosphere as one moves upwards from the Earth's surface?
troposphere
stratosphere
mesosphere
thermosphere
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Comment
Biochemistry Introduction
Which of the following is the most abundant class of organic compounds?
carbohydrates
proteins
vitamins
lipids
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rikazzz
Comment
Chemical Industries
Compounds which are added in the soil to provide essential elements to plants are called
carbonates
salts
fertilizers
metals
Author:
rikazzz
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