a deliquescent substance
an efflorescent substance
a hygroscopic substance
a dehydrating substance
quick lime
tincture iodine
rectified spirit
None of these
Vitamin B6
Vitamin C
Vitamin K
Vitamin D
cutting off supply of oxygen
it™s being converted into carbon dioxide
its combination with haemoglobin of blood
its blocking of vocal chords
sodium hydroxide
sodium carbonate
sodium bicarbonate
potassium chloride
urea
ammonium nitrate
ammonium sulphate
calcium cyanamide
Sir Ronald Ross
Sir Francis Haig
Dr Jagadish Chandra Bose
Sir CV Raman
methane
nitrogen
carbondioxide
ethylene
an oxidation process
a reduction process
a physical change
an electro-chemical process
dextrose
fruit sugar
beet sugar
blood sugar
electrochemistry
physical chemistry
biochemistry
tinctorial chemistry
oleic acid
acetic acid
palmitic acid
stearic acid
Potassium nitrate
Silver nitrate
Ammonium carbonate
Ammonium bicarbonate
an anaesthetic
a psychedelic drug
an antipyretic
an antibiotic
Baking soda
Milk
Chloroform
Copper wire
tincture iodine
paints
ink
aerated water
coal gas
producer gas
water gas
gobar gas
carbon dioxide
chloroform
carbon tetrachloride
bleaching powder
copper and tin
aluminium and magnesium
copper and zinc
copper, tin and zinc
three
four
one
five
Cataphoresis
Osmosis
Dehydration
Diffusion
Gasoline
Kerosene
Sulphuric acid
Alcohol
Nitric acid
Hydrochloric acid
Silver nitrate
Sulphuric acid
Carbon disulphide
Chloroform
Carbon tetrachloride
Methylene chloride
iodine in potassium iodide
iodine in alcohol
iodine in water
iodine in carbon disulphide
ammonia
ammonium nitrate
ammonium chloride
ammonium nitrite
nickel
aluminium
mercury
calcium
sucrose
glucose
fructose
a mixture of glucose and fructose
chlorine
carbon monoxide
sulphur dioxide
o-cresol
shaking with caustic soda solution
shaking with water
fractional distillation of liquid air
passing air over heated magnesium