The malarial parasite was discovered by
Sir Ronald Ross
Sir Francis Haig
Dr Jagadish Chandra Bose
Sir CV Raman
Correct Answer :
A. Sir Ronald Ross
Related Questions
Proteins are polymerisation products of
aldehydes
alkenes
amino acids
alkynes
If people sleep in closed rooms where charcoal fire is burning, they die due to
carbon monoxide
carbon dioxide
methane
phosgene
Which one of the following is used in dry cleaning of garments?
asphalt
naphtha
diesel oil
lubricating oil
The Long Form of the Periodic Table is based on
atomic number
valency
atomic mass
atomic radius
The gas used in balloons in the place of hydrogen is
nitrogen
helium
neon
argon
A mixture of naphthalene and sand is separated by
evaporation
using a magnet
sublimation
sedimentation
Which one of the following metals is used to extract another metal?
Lead
Tin
Zinc
Aluminium
Triple Antigen treatment for children is to ward off
whooping cough
tetanus
diphtheria
All the three
Plastics are synthetic
rubbers
fibres
resins
sugars
The sugar which is used in silvering mirrors is
sucrose
maltose
glucose
fructose
Which of the following is not an antibiotic?
streptomycin
terramycin
aureomycin
codein
Which one of the following is present in the largest amount in terms of per cent by mass in the earth's crust?
Silicon
Oxygen
Carbon
Calcium
Lunar caustic is
calcium sulphate
ammonium chloride
caustic soda
silver nitrate
Colour blindness is
a congenital disease
a communicable disease
an acquired disease
a contagious disease
Which of the following is called 'the King of Chemicals?
Nitric acid
Hydrochloric acid
Silver nitrate
Sulphuric acid
Ethyl alcohol is
a deliquescent substance
an efflorescent substance
a hygroscopic substance
a dehydrating substance
The principle involved in dialysis, a treatment administered to patients with affected kidneys is
Cataphoresis
Osmosis
Dehydration
Diffusion
The first organic compound prepared in the laboratory was
acetic acid
chloroform
urea
methane
Biogas is obtained during
decomposition of petrol
fermentation of animal and plant waste
destructive distillation of coal
electrolysis of water
Riboflavin deficiency causes
tongue inflammation
pellagra
night blindness
anaemia
Setting of cement is due to
hydration
dehydration
dialysis
osmosis
High temperature thermometers use
sodium amalgam
an alloy of sodium and potassium
silver amalgam
calcium amalgam
Jeweller's rouge is
magnetic oxide of iron
ferric oxide
ferrous oxide
ferrous carbonate
Which is the 'odd man' in the following?
brass
common salt
cane sugar
water
A metal which is extracted by thermal reduction is
nickel
aluminium
mercury
calcium
The scientist associated with the discovery of the nucleus was
Rutherford
Moseley
Niels Bohr
J.J. Thomson
According to the modern Periodic Law, the properties of elements are periodic functions of their
valency
atomic mass
number of neutrons
atomic number
The substance most abundantly found in sea water is
magnesium chloride
sodium chloride
calcium sulphate
potassium chloride
A hormone which contains iodine is
adrenalin
glucagon
epinephrin
thyroxin
The addition of a neutron to the nucleus of an atom
increases the atomic mass of the atom
decreases the atomic mass of the atom
increases the charge on the nucleus
decreases the charge on the nucleus