Carbon tetrachloride fire extinguisher should not be used in closed room because it produces poisonous glass called
Carbon Monoxide
Phosgene
Phosphine
None of these
Correct Answer :
D. None of these
Related Questions
Which of the following elements is a metal
S
Ga
Se
I
The speed of light with the rise in the temperature of the medium
Increases
Remains unaltered
Drops sharply
Decreases
Water has maximum density at
0°C
-4°C
100°C
4°C
Cell membrane is
permeable
semipermeable
selectively permeable
impermeable
The major ingredient of leather is
Nucleic acid
Carbohydrate
Collagen
Polymer
The formula of Plaster of Paris is
2CaSO4, H2O
CaSO4
CaSO4, 2H2O
2CaSO4, 4H2O
Which of the following characters is not shown by hydrogen
It burns in air to form water
It supports combustion
It readily combines with fluorine and chlorine
It combines with almost all metals forming hydrides
The removal of top soil by water or wind is called
Soil erosion
Soil wash
Silting of soil
Soil creep
The oxide of Nitrogen used in medicine as anaesthetic is
Nitric oxide
Nitrogen dioxide
Nitrogen pentoxide
Nitrous oxide
Epoxy resins is used as
Adhesives
Detergents
Insecticides
Moth repellants
The most important ore of Aluminium is
Calamine
Calcite
Galena
Bauxite
Carbon tetrachloride fire extinguisher should not be used in closed room because it produces poisonous glass called
Carbon Monoxide
Phosgene
Phosphine
None of these
The type of glass used in making prisms and lenses is
Pyrex glass
Soft glass
Flint glass
Jena glass
The marine animal called dugong which is vulnerable to extinction is a/an
Amphibian
Shark
Bony fish
Mammal
The hardest substance available on earth is
Platinum
Quartz
gold
Diamond
The intencity of Earthquakes is measured on
Beaufort scale
Secant scale
Mercalli scale
Richter scale
The fastest acting enzyme in the biological kingdom is
amylase
lipase
carboxypeptidase
carbonic anhydrase
The accumulation of stress along the boundaries of lithospheric plates results in which of the following?
Earthquakes
Magnetic reversals
Hurricanses
Increased deposition of deep-sea sediments
Pollination by birds is called
autogamy
entomophily
anemophily
ornithophily
When a gas is turned into a liquid, the process is called
evaporation
condensation
sublimation
deposition
The smallest functional and structural unit of kidney is called as
Granulocyte
Neuron
Reticulocyte
Nephron
Which of the following elements is obtained from sea weeds ?
Argon
Vanadium
Iodine
Sulphur
Liquefied Petroleum gas (LPG) consists of mainly
Methane, Butane and Propane
Methane, Ethane and Hexane
Ethane, Hexane and Nonane
Methane, Hexane and Nonane
The fastest-running terrestrial animal is
lion
man
jaguar
cheetah
Which of the following elements is non-radioactive?
Uranium
Plutonium
Thorium
Zirconium
What is the unit for measuring the pitch or frequency of sound ?
Coulomb
Hum
Cycles
Decible
Earth's seasons are caused by which of the following?
The varying amount of sunspot activity
The tilt of the earth's rotation relative to the ecliptic as earth revolves around the sun
The earth's orbit around the sun as an exlipse rather than a circle
The rotation of during a 24-hour day
Brass gets discoloured in air due to the presence of which gas in air
Carbon dioxide
Hydrogen Sulphide
Oxygen
Nitrogen
The metal used in storage batteries
Zinc
Iron
Copper
Lead
One fathom is equal to
6 feet
6 metres
60 cms
60 feet