The main constituent of gobar gas is
methane
nitrogen
carbondioxide
ethylene
Correct Answer :
A. methane
Related Questions
Which of the following is not an alloy of copper?
Bronze
Brass
Solder
Gun metal
A form of carbon which is a good lubricant is
diamond
coke
graphite
charcoal
CAN is used as (Calcium Ammonium Nitrate)
an explosive
a fertilizer
a dye
a bleaching agent
Tincture iodine is a solution of
iodine in potassium iodide
iodine in alcohol
iodine in water
iodine in carbon disulphide
Plaster of Paris
contracts while setting
expands while setting
is highly volatile
does not suffer any changes in volume while setting
One method by which the components of air can be separated is
shaking with caustic soda solution
shaking with water
fractional distillation of liquid air
passing air over heated magnesium
Which of the following metals is the best conductor of heat and electricity?
Aluminium
Silver
Copper
Magnesium
Quick lime has the formula
CaO
Ca(OH)2
NaOH
Na2CO3
The carbon cycle ensures that
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
Grape sugar is another name for
glucose
fructose
sucrose
maltose
Two or more entirely different compounds having the same molecular formula are known as
isobars
isotopes
isomorphs
isomers
Tincture iodine is
a disinfectant
an analgesic
a hypnotic
a dye
The kinetic energy of gas molecules
is unaffected by temperature variations
decreases with increase of temperature
increases with decrease of temperature
increases with increase of temperature
The substance most abundantly found in sea water is
magnesium chloride
sodium chloride
calcium sulphate
potassium chloride
In addition to nitric acid, another acid which may render iron passive is
acetic acid
oxalic acid
chromic acid
citric acid
The function of nitrogen in air is
to make air a moderate supporter of combustion
to maintain the density of air constant
to prevent the hydrogen in air from exploding
to reduce the poisonous nature of ozone in air
The flux added in the blast furnace is
Limestone
FeO
SiO2
MgO
A metal which occurs 'free' in nature is
gold
zinc
tin
molybdenum
The name rubber was given by
Lavoisier
Priestley
Dalton
Avogadro
Rooms in places infected by plague are disinfected using
bleaching powder
iodoform
sulphur dioxide
chlorine
Galvanising is the process of coating
iron with zinc
zinc with iron
copper with silver
silver with gold
Which one of the following gases is extremely soluble in water?
Carbon dioxide
Ammonia
Chlorine
Hydrogen sulphide
Which among the following is a solid non-metal?
chlorine
mercury
water
iodine
Fructose is also called
dextrose
fruit sugar
beet sugar
blood sugar
The commonest ore of aluminium is
cryolite
bauxite
malachite
azurite
Which of the following is called 'the King of Chemicals?
Nitric acid
Hydrochloric acid
Silver nitrate
Sulphuric acid
Argyrol used as eye ointment is a solution of
hydrogen peroxide
silver nitrate
tincture iodine
m-cresol
Iron is coated with zinc to prevent rusting. The process is called
annealing
tempering
calcining
galvanising
The hormone which absorption is increases glucose oxidation and glucose
adrenalin
thyroxin
insulin
epinephrine
A mixture of carbon monoxide and hydrogen is
coal gas
producer gas
water gas
gobar gas