glacial acetic acid
methanol
formic acid
stearic acid
C. formic acid
Limestone
FeO
SiO2
MgO
Alexander Fleming
Sir JJ Thomson
Dr Nessler
Sir John Russel
solid carbon dioxide
liquid oxygen
liquid hydrogen
liquid. Chlorine
wrought iron
steel
pig iron
nickel steel
urea
ammonium nitrate
ammonium sulphate
calcium cyanamide
Kerosene oil
Diesel oil
Lubricating oil
Petroleum ether
cotton
wool
cellulose
silk
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
adrenalin
thyroxin
insulin
epinephrine
whooping cough
tetanus
diphtheria
All the three
acetic acid
oxalic acid
chromic acid
citric acid
Hard water
Heavy water
Soft water
Both (a) and (b)
contracts while setting
expands while setting
is highly volatile
does not suffer any changes in volume while setting
ethyl alcohol
chloroform
oxygen
methyl alcohol
electrochemistry
physical chemistry
biochemistry
tinctorial chemistry
CaO
Ca(OH)2
NaOH
Na2CO3
ten
twenty
zero
fifty
P1V1T1 = P2 V2 T2
P1V1T2 = P2V2T1
P = P1 + P2 + P3
C =
Gasoline
Kerosene
Sulphuric acid
Alcohol
acetone
ether
acetic acid
methyl salicylate
neutrons
protons
protons and neutrons
protons and electrons
chlorine
nitrogen
sulphur
hydrogen
the percentage of carbon dioxide in air is kept almost constant
air always contains a constant proportion of oxygen
sufficient amounts of carbohydrates are produced
the process of photosynthesis proceeds smoothly
magnetic oxide of iron
ferric oxide
ferrous oxide
ferrous carbonate
It must be free from suspended impurities
It must be free from harmful bacteria
It must contain traces of sodium bicarbonate
It must have a fishy odour
Ammonium nitrate
Nitre
Charcoal powder
Sulphur
rain water
river water
conductivity water
deep well water
A - Z
A + Z
Z
A
nickel
zinc
chromium
copper
1 and 3
2 and 3
1, 2 and 4
1, 2, 3 and 4