adrenalin
thyroxin
insulin
epinephrine
C. insulin
its molecular weight is low
it is denser than ice
it is a good solvent for many ionic substances
the molecules of water are joined by hydrogen bonds
nuclear' fusion
radioactive disintegration
nuclear fission
chemical decomposition
aquatic macrophytes
aquatic fungi
effluents
evapotranspiration
CaO
Ca(OH)2
NaOH
Na2CO3
calcium carbonate
calcium bicarbonate
magnesium sulphate
calcium sulphate
nickel
zinc
chromium
copper
benzene
methane
ethane
butane
chlorine
carbon monoxide
sulphur dioxide
o-cresol
Rusting of iron
Burning of magnesium
Sublimation of iodine
Electrolysis of water
urea
ammonium nitrate
ammonium sulphate
calcium cyanamide
fractional distillation
fractional crystallisation
sublimation
evaporation
Carbon monoxide
Oxygen
Nitrogen
Hydrogen
Lead
Tin
Zinc
Aluminium
chlorine
mercury
water
iodine
it is an allotrope of carbon
it gives CO2 on heating
it contains free electrons
it is oxidised to graphitic acid
acetic acid
chloroform
urea
methane
nitrogen
nitric oxide
nitrogen peroxide
nitrous oxide
quick lime
tincture iodine
rectified spirit
None of these
dichloro-phenoxy-acetic acid
superphosphate of lime
chlorofluorocarbons (CFC)
dichloro-diphenyl-trichloro-ethane
CO2 poisoning
CO poisoning
phosgene poisoning
anesthesia
gypsum
urea
potassium nitrate
ammonium phosphate
as a nucleus to condense water vapour resulting in rain
to maintain the average density of air
to minimise the inflammatory nature of oxygen
to protect the inhabitants of the earth from the effects of ultra violet rays.
sucrose
glucose
fructose
mannose
Hard water
Heavy water
Soft water
Both (a) and (b)
iodine
sulphur
graphite
phosphorus
low pressure and high temperature
low pressure and low temperature
high pressure and low temperature
high pressure and high temperature
lead chloride
mercurous chloride
mercuric chloride
calcium sulphate
iron with zinc
zinc with iron
copper with silver
silver with gold
nickel
aluminium
mercury
calcium
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