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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
Hydrocarbons
The reaction of halogens (Group-VII) and alkane (saturated hydrocarbons) in the presence of sunlight is an example of
carbation
halogenation
substitution
hydrogenation
Author:
rikazzz
Comment
Characteristics of Acids Bases and Salts
What is the color of Phenolphthalein in acidic solution?
red
yellow
blue
colorless
Author:
rikazzz
Comment
Chemical Industries
Number of carbon atoms per molecule in Petrol is
1 to 4
5 to 10
8 to 12
10 to 16
Author:
rikazzz
Comment
Biochemistry Introduction
Which of the following is the main sugar in milk and dairy products?
glucose
sucrose
maltose
lactose
Author:
rikazzz
Comment
Characteristics of Acids Bases and Salts
What is the cause of an unpleasant fishy odor?
amines
sea water
dirt
worms
Author:
rikazzz
Comment
Biochemistry Introduction
Which of the following is added to margarine to prevent night blindness?
vitamin A
vitamin B
vitamin C
vitamin D
Author:
rikazzz
Comment
Chemical Industries
The boiling point of bitumen is
270 °C to 340 °C
350 °C to 500 °C
500 °C to 600 °C
more than 500 °C
Author:
rikazzz
Comment
Characteristics of Acids Bases and Salts
At pH6, Methyl red changes color from red to
pink
blue
yellow
orange
Author:
rikazzz
Comment
Environmental Chemistry: Water
Water that does not give scum with soap is called
hard water
soft water
distilled water
alcoholic water
Author:
rikazzz
Comment
Acids Bases and Salts
The pH of water is
8
3
2
7
Author:
rikazzz
Comment
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