The human body contains about
50% water
10% water
70% water
20% water
Correct Answer :
C. 70% water
Related Questions
Copper is purified by
poling
tempering
calcination
galvanising
The raw materials used in the manufacture of cement are
brimstone and silica
limestone and clay
brimstone and clay
brimstone and limestone
A metal which occurs 'free' in nature is
gold
zinc
tin
molybdenum
Which of the following is used in fuel to propel rockets?
Petrol
Kerosene
Hydrazine
Alcohol
The pH or pure water is nearly 7.0 It will increase on the addition or
hydrochloric acid
ammonia
cane sugar
common salt
Solid carbon dioxide is used
as a drying agent
as a refrigerant
as an antiseptic
as a bleaching agent
The discoverer of chloroform was
Liebig
Pasteur
Bunsen
Erlenmeyer
A non-metal which is a good conductor of electricity is
graphite
phosphorus
sulphur
iodine
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 gas used in balloons in the place of hydrogen is
nitrogen
helium
neon
argon
Smelling salt contains
ammonium chloride
ammonium carbonate
ammonium sulphate
potassium nitrate
Real gases tend to become ideal Under
low pressure and high temperature
low pressure and low temperature
high pressure and low temperature
high pressure and high temperature
Lunar caustic is
calcium sulphate
ammonium chloride
caustic soda
silver nitrate
Which among the following is a solid non-metal?
chlorine
mercury
water
iodine
The principle involved in dialysis, a treatment administered to patients with affected kidneys is
Cataphoresis
Osmosis
Dehydration
Diffusion
The raw materials required for the manufacture of glass are
silica, sodium nitrate and soda ash
silica, limestone and sodium nitrate
silica, sodium oxide and limestone
silica, soda ash and limestone
White lead is
a basic salt
an acid salt
a double salt
a normal salt
Mortar contains cement and sand in the ratio of
1 : 1
1 : 2
2 : 3
1 : 3
What is 'oxygen mixture'?
A mixture of potassium nitrate and carbon
A mixture of ammonium chloride and sodium nitrate
A mixture of potassium chlorate and manganese dioxide
A mixture of ammonium nitrate and charcoal
The alloy added in the preparation of steel contains
Fe and C
Mn and C
Fe and Mn
Fe, Mn and C
The alloy which is extremely hard and resistant to acids is
chrome steel
silicon steel
stainless steel
invar
Rooms in places infected by plague are disinfected using
bleaching powder
iodoform
sulphur dioxide
chlorine
Galvanised iron sheets are protected from rusting due to the presence of a layer of
lead
chromium
zinc
tin
The compound or nitrogen used in dry cells is
ammonia
ammonium nitrate
ammonium chloride
ammonium nitrite
The compound used in photography is
ammonium dichromate
copper Sulphate
magnesium Sulphate
sodium thiosulphate
An important use of nitrous acid is in
the manufacture of explosives
the manufacture of dyes
refrigerators
the preparation of drugs
Gasoline is obtained from crude petroleum by
fractional distillation
fractional crystallisation
sublimation
evaporation
Which of the following is called 'the King of Chemicals?
Nitric acid
Hydrochloric acid
Silver nitrate
Sulphuric acid
The iron salt used in blue prints is
ferric sulphate
ferric oxalate
ferric nitrate
ferric chloride
If people sleep in closed rooms where charcoal fire is burning, they die due to
carbon monoxide
carbon dioxide
methane
phosgene