The poisonous nature of carbon monoxide is due to
cutting off supply of oxygen
it™s being converted into carbon dioxide
its combination with haemoglobin of blood
its blocking of vocal chords
Correct Answer :
C. its combination with haemoglobin of blood
Related Questions
The iron salt used in blue prints is
ferric sulphate
ferric oxalate
ferric nitrate
ferric chloride
Cholesterol is
a carbohydrate
a protein
a lipid
a hormone
The noble gas which is present in microscopic quantities in air is
xenon
krypton
argon
helium
Which or the following electrolysis?
Aluminium
Copper
Zinc
Iron
The poisonous nature of carbon monoxide is due to
cutting off supply of oxygen
it™s being converted into carbon dioxide
its combination with haemoglobin of blood
its blocking of vocal chords
The raw materials used in the manufacture of cement are
brimstone and silica
limestone and clay
brimstone and clay
brimstone and limestone
An important use of nitrous acid is in
the manufacture of explosives
the manufacture of dyes
refrigerators
the preparation of drugs
Which of the following is used as an illuminant?
Gasoline
Benzoline
Kerosene
Petroleum ether
Which of the following carbon compounds is used as a fire extinguisher?
Carbon disulphide
Chloroform
Carbon tetrachloride
Methylene chloride
The most abundant constituent in air is
hydrogen
nitrogen
oxygen
noble gases
Penicillin was discovered by
Alexander Fleming
Sir JJ Thomson
Dr Nessler
Sir John Russel
A compound used both as a fungicide and as a disinfectant is
chlorine
carbon monoxide
sulphur dioxide
o-cresol
The pure at form of iron is
wrought iron
steel
pig iron
nickel steel
A non-material kind of pollution is
land pollution
air pollution
noise pollution
water pollution
Boiler scales' contain
calcium carbonate
magnesium bicarbonate
calcium sulphate
magnesium sulphate
Which of the following is not a supporter of combustion?
Oxygen
Air
Hydrogen
Chlorine
A common rodenticide is (Rat Poison)
malathion
parathion
zinc phosphide
diuron
A substance used both as an explosive and as a germicide is
phenol
TNT
picric acid
iodoform
Marble is
calcium carbonate
sodium carbonate
magnesium sulphate
ferric chloride
Gasoline is obtained from crude petroleum by
fractional distillation
fractional crystallisation
sublimation
evaporation
Bordeaux mixture contains
copper sulphate and water
copper sulphate, lime and water
thio-urea and lime
copper sulphate and thio-urea
Stainless steel contains steel and
manganese
vanadium
nickel
chromium
The process of heating steel to bright red heat and cooling suddenly by plunging it into water is known as
annealing
hardening
quenching
tempering
In the mouth, starch is converted into ______ by the action of saliva.
sucrose
glucose
fructose
mannose
The non-metal which has a shining appearance is
sulphur
phosphorus
iodine
bromine
The presence of dust particles in air serves
as a nucleus to condense water vapour resulting in rain
to maintain the average density of air
to minimise the inflammatory nature of oxygen
to protect the inhabitants of the earth from the effects of ultra violet rays.
The depletion of the ozone layer in the upper atmosphere is due to -extensive use of
dichloro-phenoxy-acetic acid
superphosphate of lime
chlorofluorocarbons (CFC)
dichloro-diphenyl-trichloro-ethane
Copper is purified by
poling
tempering
calcination
galvanising
The neutron was discovered by
Chadwick
Madam Curie
Becquerel
Aston
Alum is used
as an analgesic
in the purification of water
as a fertilizer
as a disinfectant