Which one of the following is used in dry cleaning of garments?
asphalt
naphtha
diesel oil
lubricating oil
Correct Answer :
B. naphtha
Related Questions
A substance used as a fire-extinguisher under the trade name of Pyrene is
carbon dioxide
chloroform
carbon tetrachloride
bleaching powder
The gas which has a faint sweet odour is
nitrogen
nitrous oxide
nitric oxide
nitrogen peroxide
Which or the following gases is soluble in water and Is collected by the downward displacement or air?
Carbon dioxide
Sulphur dioxide
Ammonia
Hydrogen
The compound of iron used in the manufacture of blue-black ink is
ferric chloride
ferric sulphate
ferric thiocyanate
ferrous sulphate
The kinetic energy of gas molecules
is unaffected by temperature variations
decreases with increase of temperature
increases with decrease of temperature
increases with increase of temperature
Which one of the following is used for dry cleaning?
Kerosene oil
Diesel oil
Lubricating oil
Petroleum ether
The soaps used in shaving cream are
calcium soaps
lead soaps
soft soaps
hard soaps
The gas used in balloons in the place of hydrogen is
nitrogen
helium
neon
argon
The scientist who synthesised the first organic compound (urea) in the laboratory was
Wohler
Dalton
Lavoisier
Fischer
The simplest hydrocarbon is
benzene
methane
ethane
butane
Jeweller's rouge is
magnetic oxide of iron
ferric oxide
ferrous oxide
ferrous carbonate
Which of the following is not a characteristic of potable water?
It must be free from suspended impurities
It must be free from harmful bacteria
It must contain traces of sodium bicarbonate
It must have a fishy odour
The process that takes place in the atom bomb is
nuclear' fusion
radioactive disintegration
nuclear fission
chemical decomposition
An example of thermo setting plastics is
bakelite
polythene
PVC
Teflon
Which of the following can absorb gases quickly?
Activated charcoal
Anthracite coal
Diamond
Graphite
Tincture iodine is
a disinfectant
an analgesic
a hypnotic
a dye
Which of the following cannot be used as fuel?
Gasoline
Kerosene
Sulphuric acid
Alcohol
Dust particles in the air of large industrial cities are removed by
Sedimentation
Electrophoresis
Tyndall effect
Brownian movement
Which of the following la a very good supporter of combustion?
Carbon monoxide
Oxygen
Nitrogen
Hydrogen
The artificial silk produced from cellulose is
Polyethylene
Nylon
Terylene
Rayon
The function of nitrogen in air is
to make air a moderate supporter of combustion
to maintain the density of air constant
to prevent the hydrogen in air from exploding
to reduce the poisonous nature of ozone in air
Triple Antigen treatment for children is to ward off
whooping cough
tetanus
diphtheria
All the three
The flux added in the blast furnace is
Limestone
FeO
SiO2
MgO
Calomel is
lead chloride
mercurous chloride
mercuric chloride
calcium sulphate
Radium was isolated from
galena
dolomite
sylvine
pitchblende
Annealing of glass is done in
a cupel
a long narrow chamber
an open furnace
a closed furnace
An essential condition for rusting is
high temperature
light
moisture
dry air
PAS is a drug used In the treatment of
tuberculosis
cancer
typhoid
malaria
Laughing gas is
nitric oxide
nitrogen peroxide
nitrogen pentoxide
nitrous oxide
Galvanising is the process of coating
iron with zinc
zinc with iron
copper with silver
silver with gold