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Online Tests
Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
The minimum temperature recorded by Kelvin scale is:
Choose an answer
273K
373K
Absolute scale is unable
0K to record this temperature
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Question # 2
Leachate contains:
Choose an answer
fatty acids
Bacteria
Heavy metals
All of these
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Question # 3
Ammonia gas used directly as a fertilizer injected into the soil at a depth of about:
Choose an answer
two inches
three inches
five inches
six inches
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Question # 4
How magnesium reacts with water?
Choose an answer
In frozen ice water
With cold water
In with steam
In hot state
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Question # 5
The hydrocarbon with maximum B.P is
Choose an answer
CH4
C6H14
C4H10
C2H6
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Question # 6
A compound that has a nucleophilic carbon?
Choose an answer
C2H2
C2H4
C3H8
C6H6
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Question # 7
Observed pressure of gas on the walls of container is less than actual pressure due to
Choose an answer
Hephazard motion
Inter molecular attractive forces
Elastic collision
Repulsive forces
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Question # 8
The fibre which is made from acrylonitrile as monomer:
Choose an answer
PVC
Rayon fibre
Acrylic fibre
Polyester fibre
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Question # 9
Protein are classified into
Choose an answer
Simple protein
Complex proteins
Derived proteins
All of these
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Question # 10
Hydrolysis of protein by 6M HCl gives peptides and then alpha-amino acids. How many alpha-amino acids molecules are obtained on the hydrolysis of a tetrapeptide
Choose an answer
2
3
4
5
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Question # 11
The potential difference set up at 25 C and 1 atm when clectrode is dipped m Tis one molar ionic sohution is called
Choose an answer
Single electrode potential
electrode potential
Standard electrode potential
Standard hydrogen electrode
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Question # 12
In the hydrolysis of CH
3
COOC
2
H
5
the acid produced is
Choose an answer
Inhibitor
Catalyst
Auto catalyst
None of above
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Question # 13
When elements of group I react with the elements of group VIA theory form
Choose an answer
Ionic bond
Covalent bond
Polar bond
None
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Question # 14
In thermal decomposition of N
2
O the half life period for two different initial concentrations of N
2
O are
(i) 255 second for initial N
2
O 290 mm Hg
(ii) 212 second for initial N
2
O 360 mm Hg then it is
Choose an answer
Zero order
First order
Second order
Third order
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Question # 15
The normal amount of overhead ozone is about
Choose an answer
250 Du
300 DU
350 DU
400 DU
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Question # 16
Chief air pollutant which is likely to deplete ozone layer
Choose an answer
Sulphure dioxide
Carbon dioxide
Nitrogen oxides and chloro fluorocarbons
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Question # 17
Benzene is an example of
Choose an answer
Aromatic compound
Cyclic compound
Aliphatic compound
A cyclic compound
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Question # 18
Which of the following molecules has unpaired electrons in anti-bonding molecular orbitals?
Choose an answer
O
2
N
2
Br
2
F
2
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Question # 19
The unit of rate of reaction is
Choose an answer
mole dm
-3
mole Kg
-1
moles dm
-3
sec
-1
grams dm
-3
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Question # 20
The number of subatomic particles in atoms sidcovered is more than:
Choose an answer
110
100
125
90
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Question # 21
Ozone is not
Choose an answer
An allotrope
A powerful oxidizing agent
Paramagnetic
A bent molecule
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Question # 22
Which of the following is not a hydrocarbon
Choose an answer
Butane
Methyl benezene
Acetylene
Glucose
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