A common rodenticide is (Rat Poison)
malathion
parathion
zinc phosphide
diuron
Correct Answer :
C. zinc phosphide
Related Questions
An example of thermo setting plastics is
bakelite
polythene
PVC
Teflon
White vitriol is
ZnSO4 . 7H2O
FeSO4 . 7H2O
MgSO4 . 7H2O
CaSO4 . 2H2O
Clark's method for removal of temporary hardness in water uses
calcium hydroxide
washing soda
calcium chloride
zeolite
Cholesterol is
a carbohydrate
a protein
a lipid
a hormone
Chloroform used as anaesthetic should be preserved In the dark in tightly stoppered bottles because otherwise
it becomes coloured
it gets evaporated in air
it gets oxidised to phosgene
it gets decomposed to chloropicrin
Gasoline is obtained from crude petroleum by
fractional distillation
fractional crystallisation
sublimation
evaporation
Which or the following is not a constituent or gun powder?
Ammonium nitrate
Nitre
Charcoal powder
Sulphur
The substance preserved under water is
potassium
sodium
red phosphorus
white phosphorus
Which one of the following is used in dry cleaning of garments?
asphalt
naphtha
diesel oil
lubricating oil
The percentage of silver in German silver is
ten
twenty
zero
fifty
Water has an unusually high bolling point because
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
Consider the following statements: Hard water is not suitable for
1) drinking
2) washing clothes with soap
3) use in boilers
4) irrigating crops
Which of these statements are correct?
1 and 3
2 and 3
1, 2 and 4
1, 2, 3 and 4
Burglar proof safes are made of
Tungsten steel
Manganese steel
Chromium steel
Nickel steel
Vulcanisation was discovered by
Goodyear
Wohler
Baeyer
Perkin
Penicillin was discovered by
Alexander Fleming
Sir JJ Thomson
Dr Nessler
Sir John Russel
The non-metal which has a shining appearance is
sulphur
phosphorus
iodine
bromine
Hypo' is
sodium nitrate
Potassium nitrate
sodium thiosulphate
ammonium chloride
The compound which is both an antiseptic and a disinfectant is
phenol
iodoform
bleaching powder
blue vitriol
Physico-chemical characteristics of water in water sources undergo changes due to
aquatic macrophytes
aquatic fungi
effluents
evapotranspiration
The pH or pure water is nearly 7.0 It will increase on the addition or
hydrochloric acid
ammonia
cane sugar
common salt
Two or more entirely different compounds having the same molecular formula are known as
isobars
isotopes
isomorphs
isomers
A drug that is usually administered for malaria is
sulphanilamide
quinine
methicillin
novocaine
Graphite la a good conductor of electricity because
it is an allotrope of carbon
it gives CO2 on heating
it contains free electrons
it is oxidised to graphitic acid
Dust particles in the air of large industrial cities are removed by
Sedimentation
Electrophoresis
Tyndall effect
Brownian movement
Annealing of glass is carried out by
rapid cooling
rapid heating
slow cooling
slow heating
Which one of the following is used for dry cleaning?
Kerosene oil
Diesel oil
Lubricating oil
Petroleum ether
A compound of carbon used as anaesthetic is
carbon disulphide
carbon tetrachloride
phosgene
chloroform
Galvanised iron sheets are protected from rusting due to the presence of a layer of
lead
chromium
zinc
tin
Phosgene is a compound of
red phosphorus and oxygen
white phosphorus and oxygen
carbon monoxide and chlorine
carbon dioxide and chlorine
An acid which is used as a preservative for pickles is
hydrochloric acid
citric acid
tartaric acid
acetic acid