Oxalic acid is used in the manufacture of
tincture iodine
paints
ink
aerated water
Correct Answer :
C. ink
Related Questions
Apart from lead tetra-ethyl, the other compound used as antiknock is
n-heptane
n-octane
iso-heptane
iso-octane
Which among the following is a local anaesthetic?
Chloroform
Morphine
Streptomycin
Cocaine
Harmful bacteria in drinking water cannot be destroyed by
chlorination
boiling
adding caustic soda
ozonisation
A form of carbon which is a good lubricant is
diamond
coke
graphite
charcoal
Which of the following metals is the best conductor of heat and electricity?
Aluminium
Silver
Copper
Magnesium
Which of the following is a Bleaching agent?
Potassium chlorate
Hydrogen peroxide
Copper sulphate
Silver Nitrate
The Long Form of the Periodic Table is based on
atomic number
valency
atomic mass
atomic radius
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
Glass articles are annealed so that
they may appear better
they can resist the action of acids and alkalies
they lose their brittleness
they can withstand temperature shocks
The rate of setting of cement is slowed down by the addition of
quicklime
gypsum
soda lime
bleaching powder
The raw materials used in the manufacture of cement are
brimstone and silica
limestone and clay
brimstone and clay
brimstone and limestone
Rooms in places infected by plague are disinfected using
bleaching powder
iodoform
sulphur dioxide
chlorine
The term 'nucleons' apples to
neutrons
protons
protons and neutrons
protons and electrons
The scientist who synthesised the first organic compound (urea) in the laboratory was
Wohler
Dalton
Lavoisier
Fischer
Methylated spirit is a mixture of
methyl alcohol and acetic acid
methyl alcohol and ethyl alcohol
ethyl alcohol and pyridine
methyl alcohol and pyridine
In the making of jewels, gold is usually mixed with
zinc
tin
copper
aluminium
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
A burning substance which continues to burn in a jar of carbon dioxide is
zinc
red phosphorus
magnesium
sulphur
The process that takes place in the atom bomb is
nuclear' fusion
radioactive disintegration
nuclear fission
chemical decomposition
The artificial silk produced from cellulose is
Polyethylene
Nylon
Terylene
Rayon
A mixture of carbon monoxide and hydrogen is
coal gas
producer gas
water gas
gobar gas
Colour blindness is
a congenital disease
a communicable disease
an acquired disease
a contagious disease
Plaster of Paris
contracts while setting
expands while setting
is highly volatile
does not suffer any changes in volume while setting
Ozone is an allotrope of Oxygen, containing ______ atom/s of oxygen per molecule instead of two.
three
four
one
five
Galvanising is the process of coating
iron with zinc
zinc with iron
copper with silver
silver with gold
Optical instruments are made of
pyrex glass
flint glass
quartz glass
Crooke's glass
Rusting of iron cannot be prevented by
painting
applying alkaline phosphate
applying soap water
galvanising
Sulphur is readily soluble in
Water
Alcohol
Carbon-di-sulphide
Sodium chloride solution
Oil of winter green contains
acetone
ether
acetic acid
methyl salicylate
Which of the following is used as an illuminant?
Gasoline
Benzoline
Kerosene
Petroleum ether