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Home
Chemistry Test 31
Chemistry Test 31
Result
Chemistry Test 31
/
Score
-
Rank
Time Taken:
-
Question
1/30
1 / -0
By which a mixture of naphthalene and benzoic acid can be separated?
Correct
Wrong
Skipped
A
Copper, tin and bronze
Correct
Wrong
Skipped
B
Methyl Isocyanite
Correct
Wrong
Skipped
C
19
Correct
Wrong
Skipped
D
Chromatography
Question
2/30
1 / -0
Hydrogen sulphide is a
Correct
Wrong
Skipped
A
Red phosphorous
Correct
Wrong
Skipped
B
Nichrome
Correct
Wrong
Skipped
C
Quartz glass
Correct
Wrong
Skipped
D
Colourless gas with rotten egg smell
Question
3/30
1 / -0
High amount of energy is released in the explosion of atomic bomb is due to–
Correct
Wrong
Skipped
A
Lead
Correct
Wrong
Skipped
B
Conversion of Mass into energy
Correct
Wrong
Skipped
C
Hydrogen sulphide (H2S)
Correct
Wrong
Skipped
D
Zinc oxide
Question
4/30
1 / -0
What are the fundamental elements of an atom?
Correct
Wrong
Skipped
A
Magnesium bicarbonate
Correct
Wrong
Skipped
B
Lichen
Correct
Wrong
Skipped
C
Magnesium silicate
Correct
Wrong
Skipped
D
Electron, Proton, Neutron
Question
5/30
1 / -0
Natural rubber is a polymer of–
Correct
Wrong
Skipped
A
Isoprene
Correct
Wrong
Skipped
B
Iron
Correct
Wrong
Skipped
C
Red phosphorus
Correct
Wrong
Skipped
D
Carbon
Question
6/30
1 / -0
Which nuclear particles responsible for holding all nucleons together?
Correct
Wrong
Skipped
A
Plutonium-239
Correct
Wrong
Skipped
B
Chemical Process
Correct
Wrong
Skipped
C
Silver
Correct
Wrong
Skipped
D
Mesons
Question
7/30
1 / -0
Paper of old books turns to brownish color due to –
Correct
Wrong
Skipped
A
Water Vapors
Correct
Wrong
Skipped
B
Uranium
Correct
Wrong
Skipped
C
Conc HNO3 and conc CHL
Correct
Wrong
Skipped
D
Oxidation of cellulose
Question
8/30
1 / -0
Sodium carbonate crystals lose water molecules. What is this property called?
Correct
Wrong
Skipped
A
Nitrogen oxide
Correct
Wrong
Skipped
B
Animal Wast
Correct
Wrong
Skipped
C
Cement industry
Correct
Wrong
Skipped
D
Efflorescence
Question
9/30
1 / -0
Identify the metal which is non-toxic in nature–
Correct
Wrong
Skipped
A
Half Filled Stable configuration in 2p orb
Correct
Wrong
Skipped
B
Auxin
Correct
Wrong
Skipped
C
Gold
Correct
Wrong
Skipped
D
Iron
Question
10/30
1 / -0
Which metal is protected by the layer of its own oxide?
Correct
Wrong
Skipped
A
Aluminum
Correct
Wrong
Skipped
B
Gold
Correct
Wrong
Skipped
C
High octane fuel
Correct
Wrong
Skipped
D
H2O
Question
11/30
1 / -0
In which city of India, the diurnal range of temperature is maximum?
Correct
Wrong
Skipped
A
Energy
Correct
Wrong
Skipped
B
Isotones
Correct
Wrong
Skipped
C
Methane
Correct
Wrong
Skipped
D
New Delhi
Question
12/30
1 / -0
In human body, into which does the pancreas secretes its enzymes?
Correct
Wrong
Skipped
A
Duodenum
Correct
Wrong
Skipped
B
ZnSO4 .7H2O
Correct
Wrong
Skipped
C
Orientation
Correct
Wrong
Skipped
D
Fermentation
Question
13/30
1 / -0
Heavy water used as a coolant in nuclear reactor. Heavy Water is:
Correct
Wrong
Skipped
A
Sodium thiosulphate
Correct
Wrong
Skipped
B
Ion exchange method
Correct
Wrong
Skipped
C
Chemical energy
Correct
Wrong
Skipped
D
Water containing heavy Isotopes of Hydrogen atom
Question
14/30
1 / -0
Nucleotide have same atomic number are called:
Correct
Wrong
Skipped
A
Isotopes
Correct
Wrong
Skipped
B
4
Correct
Wrong
Skipped
C
0.75
Correct
Wrong
Skipped
D
Measuring flask
Question
15/30
1 / -0
Quartz is a type of
Correct
Wrong
Skipped
A
Nylon
Correct
Wrong
Skipped
B
Alpha particles
Correct
Wrong
Skipped
C
Cations
Correct
Wrong
Skipped
D
Silicon dioxide
Question
16/30
1 / -0
The product equivalent weight and valiancy of an element is equal to–
Correct
Wrong
Skipped
A
Mercury
Correct
Wrong
Skipped
B
By its atomic number
Correct
Wrong
Skipped
C
Helium
Correct
Wrong
Skipped
D
Atomic weight
Question
17/30
1 / -0
A Liquid is said to be boiled when its–
Correct
Wrong
Skipped
A
Oxygen with acetylene
Correct
Wrong
Skipped
B
Hydration and Hydrolysis
Correct
Wrong
Skipped
C
Vapor pressure is equal to the surrounding pressure
Correct
Wrong
Skipped
D
100°C
Question
18/30
1 / -0
Uranium eventually decays into a stable isotope of –
Correct
Wrong
Skipped
A
Lead
Correct
Wrong
Skipped
B
Increases the atomic number by one
Correct
Wrong
Skipped
C
Sodium Nitrate (NaNo3)
Correct
Wrong
Skipped
D
Texas-Louisiana belt
Question
19/30
1 / -0
Which one of the following Metals is used to Heat up the electric iron?
Correct
Wrong
Skipped
A
Isotones
Correct
Wrong
Skipped
B
Nimbostratus
Correct
Wrong
Skipped
C
Nichrome
Correct
Wrong
Skipped
D
As anti-plague drug
Question
20/30
1 / -0
Who does a liquid drop tend to assume a spherical shape?
Correct
Wrong
Skipped
A
Surface tension
Correct
Wrong
Skipped
B
Enloroxylenol
Correct
Wrong
Skipped
C
Kerosene
Correct
Wrong
Skipped
D
Oxidising agent
Question
21/30
1 / -0
Which noble gas was discovered in chromosphere of the sun?
Correct
Wrong
Skipped
A
Calcium, magnesium and iron
Correct
Wrong
Skipped
B
630C for 30 min
Correct
Wrong
Skipped
C
Copper and gold
Correct
Wrong
Skipped
D
Helium
Question
22/30
1 / -0
Which gas do not considered as polluting agent of air?
Correct
Wrong
Skipped
A
CO2
Correct
Wrong
Skipped
B
Water containing heavy Isotopes of Hydrogen atom
Correct
Wrong
Skipped
C
Protons and neutrons
Correct
Wrong
Skipped
D
Zinc and Gold
Question
23/30
1 / -0
Soda water contains
Correct
Wrong
Skipped
A
Bromein
Correct
Wrong
Skipped
B
Magnesium
Correct
Wrong
Skipped
C
Nitrogen oxide
Correct
Wrong
Skipped
D
CO2
Question
24/30
1 / -0
Iron and Manganese are removed by the process of–
Correct
Wrong
Skipped
A
Atomic emission
Correct
Wrong
Skipped
B
Pyrometallurgy
Correct
Wrong
Skipped
C
Filtration
Correct
Wrong
Skipped
D
Poling
Question
25/30
1 / -0
Which was the The first atomic power reactor in India?
Correct
Wrong
Skipped
A
Cement industry
Correct
Wrong
Skipped
B
Apsara
Correct
Wrong
Skipped
C
CaSO.2HO
Correct
Wrong
Skipped
D
U-235
Question
26/30
1 / -0
Which compound does not give a positive test in Lassaigne’s test for nitrogen?
Correct
Wrong
Skipped
A
HCHO
Correct
Wrong
Skipped
B
Methane
Correct
Wrong
Skipped
C
Hydrazinc
Correct
Wrong
Skipped
D
Graphite
Question
27/30
1 / -0
Which one of the following reacts with Fehling’s solution?
Correct
Wrong
Skipped
A
acid
Correct
Wrong
Skipped
B
HCHO
Correct
Wrong
Skipped
C
5
Correct
Wrong
Skipped
D
Narcylene
Question
28/30
1 / -0
When the radius of the T.G. coil is decreased, what does happen in its sensitiveness?
Correct
Wrong
Skipped
A
Boron
Correct
Wrong
Skipped
B
Vinyl chloride
Correct
Wrong
Skipped
C
Increases
Correct
Wrong
Skipped
D
Glucose
Question
29/30
1 / -0
Which of the following is responsible for extra strength of Pyrex glass?
Correct
Wrong
Skipped
A
Borax
Correct
Wrong
Skipped
B
100°C
Correct
Wrong
Skipped
C
360°C
Correct
Wrong
Skipped
D
Kerosene
Question
30/30
1 / -0
What is the principal reason for the formation of metamorphic rocks?
Correct
Wrong
Skipped
A
Acetylsalicylic acid
Correct
Wrong
Skipped
B
Extreme heat and pressure
Correct
Wrong
Skipped
C
Baking Soda
Correct
Wrong
Skipped
D
Iron
Re-attempt
-
Correct (
-
)
Wrong (
-
)
Skipped (
-
)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Re-attempt
-
Correct (
-
)
Wrong (
-
)
Skipped (
-
)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
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