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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
Fungicides are the pesticides which:
Choose an answer
Kill plants
Kill insects
Kill herbs
Control the growth of fungus
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Question # 2
The mono atomic gas molecules are ______ gas molecules
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Halogen
Zero
Noble
Both b and c
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Question # 3
Formation of Picric acid from phenol needs heating, one possible reason for it is
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acidity of phenol
e- donating nature of-OH
acidity of picric acid
e- with drawing effect of- NO2
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Question # 4
Which of the following solids does not have a covalent bond?
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Silica
Copper
Diamond
Graphite
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Question # 5
The electrochemical series is based on
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pH scale
Redox scale
Hdrogen scale
Arrhenius scale
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Question # 6
Real gases deviate from the ideal behaviour at very
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high pressure
low temperature
low pressure
both a and b
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Question # 7
Plasma was introduced by
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Crookes
Soddy
Faraday
Van der Waal
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Question # 8
One mole of SO2 contains
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6.022 x 10(23) atoms of oxygen
6.022x 10 ê23 atoms of sulfur
18.1x 10 (23) molecules of SO2
4 g molecule of SO2
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Question # 9
Asbestos is commonly used in making
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wall board
black board
soft board
hard board
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Question # 10
Why a C- C bond breaks by uv light
Choose an answer
Cl is most electronegative
Cl is volatile
C - Cl bond energy is smaller than that of C - H bond energy
uv light provides energy which is sufficient to break C - Cl bond and not C - H bond
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Question # 11
Acetylide can give back ethyne upon treatment with
Choose an answer
water
strong base
dil. Acid
weak base
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Question # 12
Wohler synthesized first of all the organic compound:
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Carbohydrates
Urea
Aniline
Toluene
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Question # 13
Sodium forms largely
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Normal oxides
Per-oxides
Superoxides
None of these
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Question # 14
The formula of esters is
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Question # 15
Nylon, 6,6 is a condensation polymer of
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Adipic acid and glycol
Phthalic acid and glycol
Adipic acid and hexaethylene diamine
Pthalic acid and hexaethylene diamine
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Question # 16
In a Galvanic cell, the electrons flow from
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A node to cathode through the solution
Cathode to anode through the external circuit
Cathode to anode through the external circuit
Anode to cathode through the external circuit
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Question # 17
Which of the following undergoes uncleophilic substitution exclusively by S
N
1 mechanism?
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Benzyl chloride
Ethyl chloride
Chlorobenzene
Isopropyl choride
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Question # 18
Mustard gas is a
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Gas
High boiling speed
High melting liquid
Steam
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Question # 19
The principle quantum number describes
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The distance form the nucleus
The shape of the orbital
The orientation of the orbital
The spin of the electron
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Question # 20
Acid rain is caused when various atmospheric gases dissolve in rain water. What are the gases that cause rain water
Choose an answer
SO
2
NO
2
CO
A and b only
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Question # 21
Which is the derived lipid?
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Common fats
Vitamin-D
Common oils
Spinolipids
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Question # 22
The method in which alkanes prepared by alkyle halides in the presence of palladium - charcoal is
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Hydrolysis
Electrolysis
Hydrogenation
Hydrogenolysis
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