annealing
hardening
quenching
tempering
B. hardening
solid carbon dioxide
liquid oxygen
liquid hydrogen
liquid. Chlorine
CO2 poisoning
CO poisoning
phosgene poisoning
anesthesia
chrome steel
silicon steel
stainless steel
invar
conc. H2SO4
conc. HCl
conc. HNO3
acetic acid
hydrochloric acid
citric acid
tartaric acid
acetic acid
cryolite
bauxite
malachite
azurite
copper and tin
aluminium and magnesium
copper and zinc
copper, tin and zinc
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
evaporation
sublimation
using a separating funnel
fractional distillation
carbohydrates
carbides
hydrocarbons
carbonyls
ten
twenty
zero
fifty
Aluminium
Silver
Copper
Magnesium
acetone
ether
acetic acid
methyl salicylate
as a drying agent
as a refrigerant
as an antiseptic
as a bleaching agent
hydrochloric acid
ammonia
cane sugar
common salt
annealing
hardening
quenching
tempering
benzene
methane
ethane
butane
ethane
ethylene
acetylene
methane
hydrogen peroxide
silver nitrate
tincture iodine
m-cresol
whooping cough
tetanus
diphtheria
All the three
Aluminium
Chromium
Nickel
Tungsten
contracts while setting
expands while setting
is highly volatile
does not suffer any changes in volume while setting
brass
common salt
cane sugar
water
potassium and lead silicates
zinc and barium borosilicates
potassium and calcium silicates
sodium and calcium silicates
Baking soda
Milk
Chloroform
Copper wire
phosphorus pentaoxide
phosphorus trichloride
phosphorus trisulphide
phosphorus trioxide
Bronze
Brass
Solder
Gun metal
nervous disorders
heart diseases
anaemia
impairment of vision
the initial showers wash the atmosphere free from most of the impurities
it contains desirable salts like sodium chloride and ammonium nitrate
it dissolves the gases in the atmosphere like ozone which are good for health in small quantities
it is supposed to be 'heaven sent'
Terylene
Rayon
Nylon
Silk