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Chemistry Test 40
Chemistry Test 40
Time Left -
Question
1/30
1 / -0
Which one of the following is not a coal variety?
A
Dolomite
B
oxygen and water
C
Special theory of relativity
D
Copper and Tin
Question
2/30
1 / -0
Which of the element of group 17 is radioactive?
A
Oxygen with acetylene
B
By its octane number
C
Tranquilizer
D
Astatine
Question
3/30
1 / -0
Which was the first metal used by man?
A
Nitrate, Sulphur and Charcoal
B
Copper
C
Nitrous oxide
D
Fluorine
Question
4/30
1 / -0
Which is the major oil producing area in U.S.A.?
A
SO2
B
Lyophilic
C
Texas-Louisiana belt
D
Nichrome
Question
5/30
1 / -0
Which is the metal used in storaoe batteries?
A
Lead
B
Lichen
C
Argon
D
Urea
Question
6/30
1 / -0
Which one of the following Mineral does not contains oxygen?
A
Resistance
B
Sulphur dioxide gas
C
Cryolite
D
2, 8, 8, 2
Question
7/30
1 / -0
Which element is with the highest electrical conductivity?
A
Citric acid
B
Silver
C
Lowered
D
Fluorine
Question
8/30
1 / -0
What is used in preparing match sticks?
A
Thermocouple
B
Lichen
C
Underground water
D
Red phosphorus
Question
9/30
1 / -0
Which of the purest commercial form of Iron?
A
6500 k
B
Butane and propane
C
Wrought Iron
D
Moderator
Question
10/30
1 / -0
What are soaps?
A
Emulsion
B
Kerosene
C
Sodium or potassium salts of heavier fatty acids
D
Increases
Question
11/30
1 / -0
What is Peroxyl?
A
Cooking
B
Positron
C
Macro Pollutant
D
Chromium
Question
12/30
1 / -0
Which of the following are properties is generally found in non-metals?
A
Brittleness
B
Isoelectronic
C
Copper
D
Galvanization
Question
13/30
1 / -0
The pH of water at 25°C is 7.
A
Remains same
B
Radium
C
Lead
D
Cadmium
Question
14/30
1 / -0
The most suitable unit to express the nuclear radius is –
A
Fermi
B
Gold
C
Ammonia
D
Nitrate, Sulphur and Charcoal
Question
15/30
1 / -0
Main Gaseous pollutant of thermal power plants is–
A
Radon gas
B
Chlorofluoro carbons
C
Roentgens
D
SO2
Question
16/30
1 / -0
Which is used as a coolant in nuclear reactors?
A
Photoelectric effect
B
Kerosene
C
Red phosphorus
D
Liquid sodium
Question
17/30
1 / -0
A hard fluid present in smog which causes irritation in eyes is–
A
Nitrogen dioxide, chloroform
B
Nucleus
C
Increases
D
Peraxyacetyl Nitrate
Question
18/30
1 / -0
Which predominantly acts as the agent of chemical erosion of soil?
A
Animal Wast
B
Underground water
C
Platinum
D
Citric acid
Question
19/30
1 / -0
When water vapours are passed over aluminium carbide, what do we get?
A
Methane
B
Tranquilizer
C
CaSO.2HO
D
Sugar
Question
20/30
1 / -0
What is Baeyer’s reagent?
A
Allopathic
B
Kerosene
C
Water and petrol are immiscible with each other and petrol which forms upper Layer continuous to burn.
D
Alkaline Potassium Permanganate
Question
21/30
1 / -0
Which is a strong smelling agent added to LPG cylinder to help in the detection of gas leakage?
A
Silver
B
Thioethanol
C
D2O
D
Borax
Question
22/30
1 / -0
With rise of boiling point of a water, what will be the latent heat of steam?
A
Decreases
B
40C
C
Regur soil
D
Mesons
Question
23/30
1 / -0
Glucose is a type of –
A
Platinum
B
Borax
C
Hexose Sugar
D
Giger – Muller counter
Question
24/30
1 / -0
Which of the following determines the chemical properties of an element?
A
Number of electrons
B
Cadmium
C
Graphite
D
Sustain body temperature
Question
25/30
1 / -0
What happens during the charging of Lead operated battery?
A
Ammonia
B
Consumption of sulphuric acid
C
Copper
D
Aluminum
Question
26/30
1 / -0
Which of the following metal has least melting point?
A
Electron
B
Mercury
C
Zinc and Gold
D
D-Block
Question
27/30
1 / -0
Which gas is used for the artificial riping of Green Fruits?
A
Ethylene
B
Mercury
C
Chemical energy
D
Carbon dioxide
Question
28/30
1 / -0
The gas that usually cause explosion in coal mines is–
A
Golgi appartus
B
A sulphur compound
C
Decreased
D
Methane (CH4)
Question
29/30
1 / -0
Bakelite and Phenol are the polymers of–
A
Corrosion
B
Glass
C
Due to osmotic shock
D
Formaldehyde
Question
30/30
1 / -0
Iron rusts quickly in –
A
Aldehyde
B
Sea water
C
HCHO
D
Na2CO3
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