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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
In alkanes (saturated hydrocarbons) each carbon atom forms
2 bonds
4 bonds
6 bonds
8 bonds
Author:
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Comment
Characteristics of Acids Bases and Salts
Which of the following is used in the manufacture of many chemicals, drugs, dyes, paints, and explosives?
hydrochloric acid
nitric acid
sulphuric acid
phosphoric acid
Author:
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Comment
Biochemistry Introduction
Specific organic compounds which are required by our bodies to prevent specific diseases but cannot be produced by our bodies are called
hydrocarbons
carbohydrates
proteins
vitamins
Author:
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Comment
Characteristics of Acids Bases and Salts
What is the effect of acid on blue litmus paper?
it remains blue
it turns pink
it turns red
it becomes colorless
Author:
rikazzz
Comment
Chemical Industries
The boiling point of petrol is
below 20 °C
35 °C to 70 °C
70 °C to 120 °C
170 °C to 250 °C
Author:
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Comment
Hydrocarbons
Loss of hydrogen halide from alkyl halide gives
alkenes
alkanes
alkynes
halogens
Author:
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Comment
Environmental Chemistry: Water
The density of water becomes maximum at
10 °C
4 °C
5 °C
12 °C
Author:
rikazzz
Comment
Organic Chemistry
Considering dimethyl, how many carbon atoms is the oxygen atom bonded to?
one
two
three
four
Author:
rikazzz
Comment
Organic Chemistry
Groups of atoms that can occur within organic molecules are called
cyclic compounds
functional groups
homologous series
none of above
Author:
rikazzz
Comment
Biochemistry Introduction
The resulting molecule after joining two amino acid units is called a/an
amino group
carboxyl group
peptide bond
dipeptide
Author:
rikazzz
Comment
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