Flint glass contains
potassium and lead silicates
zinc and barium borosilicates
potassium and calcium silicates
sodium and calcium silicates
Correct Answer :
A. potassium and lead silicates
Related Questions
A hormone which contains iodine is
adrenalin
glucagon
epinephrin
thyroxin
Invert sugar is
sucrose
glucose
fructose
a mixture of glucose and fructose
The atomic number of an element represents
number of neutrons in the nucleus
number of protons and neutrons in the nucleus
the valency of the element
number of protons in the nucleus
One of the ingredients of the paste on the side of a match box is
phosphorus pentaoxide
phosphorus trichloride
phosphorus trisulphide
phosphorus trioxide
The earliest name given to nitrogen was
dephlogisticated air
azote
inflammable air
marine acid air
Which among the following is a local anaesthetic?
Chloroform
Morphine
Streptomycin
Cocaine
Which of the following is an essential constituent of acids?
Oxygen
Nitrogen
Hydrogen
Chlorine
White lead is
a basic salt
an acid salt
a double salt
a normal salt
Which of the following is not a metal?
Lithium
Helium
Sodium
Cobalt
Which or the following gases is soluble in water and Is collected by the downward displacement or air?
Carbon dioxide
Sulphur dioxide
Ammonia
Hydrogen
Which one of the following elements is alloyed with iron to produce steel which can resist high temperatures and also have high hardness and abrasion resistance?
Aluminium
Chromium
Nickel
Tungsten
Compounds containing only carbon and hydrogen are called
carbohydrates
carbides
hydrocarbons
carbonyls
Iodine in alcohol is known as
quick lime
tincture iodine
rectified spirit
None of these
Lead pencils contain
white lead
graphite
red lead
coke
Gasoline is obtained from crude petroleum by
fractional distillation
fractional crystallisation
sublimation
evaporation
During fermentation, the by-product is
ethyl alcohol
methyl alcohol
carbon monoxide
carbon dioxide
Hypo' is
sodium nitrate
Potassium nitrate
sodium thiosulphate
ammonium chloride
Which of the following is not an antibiotic?
streptomycin
terramycin
aureomycin
codein
Which of the following elements is not required for the healthy growth of plants?
Nitrogen
Phosphorus
Potassium
Mercury
Reduction involves
loss of electrons
gain of electrons
gain of oxygen
removal of hydrogen
Soda-water contains
sodium bicarbonate
sodium carbonate
carbonic acid
sodium hydroxide
Dry Ice is
solid carbon dioxide
liquid oxygen
liquid hydrogen
liquid. Chlorine
Grape sugar is another name for
glucose
fructose
sucrose
maltose
The percentage of silver in German silver is
ten
twenty
zero
fifty
Diamonds are weighed in
grams
pounds
carats
tons
Plastics are synthetic
rubbers
fibres
resins
sugars
Which one of the following is used for dry cleaning?
Kerosene oil
Diesel oil
Lubricating oil
Petroleum ether
Cupellation is used in the purification of
Lead
Tin
Silver
Gold
Hydrogen gas has
a very sweet smell
a very pungent smell
an irritating smell
no smell at all
Sulphur is readily soluble in
Water
Alcohol
Carbon-di-sulphide
Sodium chloride solution