rapid cooling
rapid heating
slow cooling
slow heating
C. slow cooling
hydrochloric acid
ammonia
cane sugar
common salt
ZnSO4 . 7H2O
FeSO4 . 7H2O
MgSO4 . 7H2O
CaSO4 . 2H2O
calcium carbonate
calcium bicarbonate
magnesium sulphate
calcium sulphate
Alexander Fleming
Sir JJ Thomson
Dr Nessler
Sir John Russel
1 and 3
2 and 3
1, 2 and 4
1, 2, 3 and 4
shaving creams
adhesive tapes
toilet powders
lubricants
graphite
phosphorus
sulphur
iodine
neon
argon
helium
krypton
potassium and lead silicates
zinc and barium borosilicates
potassium and calcium silicates
sodium and calcium silicates
it becomes coloured
it gets evaporated in air
it gets oxidised to phosgene
it gets decomposed to chloropicrin
sulphanilamide
quinine
methicillin
novocaine
gypsum
urea
potassium nitrate
ammonium phosphate
sucrose
glucose
fructose
mannose
Bronze
Brass
Solder
Gun metal
silica, sodium nitrate and soda ash
silica, limestone and sodium nitrate
silica, sodium oxide and limestone
silica, soda ash and limestone
poling
tempering
calcination
galvanising
hydrogen
nitrogen
oxygen
noble gases
tongue inflammation
pellagra
night blindness
anaemia
German silver
solder
magnalium
bell metal
a cupel
a long narrow chamber
an open furnace
a closed furnace
n-heptane
n-octane
iso-heptane
iso-octane
acetone
ether
acetic acid
methyl salicylate
dephlogisticated air
azote
inflammable air
marine acid air
Chadwick
Madam Curie
Becquerel
Aston
ammonium dichromate
copper Sulphate
magnesium Sulphate
sodium thiosulphate
kerosene
naphtha
lubricating oil
asphalt
sodium chloride in water
iodine in alcohol
sulphur in carbon disulphide
Potassium iodide in water
P1V1T1 = P2 V2 T2
P1V1T2 = P2V2T1
P = P1 + P2 + P3
C =
calcium carbonate
magnesium bicarbonate
calcium sulphate
magnesium sulphate
cryolite
bauxite
malachite
azurite