Which of the following act a both u oxidising and reducing agent?
nitric acid
ammonia
nitrous acid
nitrogen peroxide
Correct Answer :
C. nitrous acid
Related Questions
Which of the following is an essential constituent of acids?
Oxygen
Nitrogen
Hydrogen
Chlorine
Which of the following is not an antibiotic?
streptomycin
terramycin
aureomycin
codein
A burning substance which continues to burn in a jar of carbon dioxide is
zinc
red phosphorus
magnesium
sulphur
Which of the following cannot be used as fuel?
Gasoline
Kerosene
Sulphuric acid
Alcohol
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 noble gas which is present in microscopic quantities in air is
xenon
krypton
argon
helium
Compounds of nitrogen with metals are called
nitrates
nitrites
hyponitrates
nitrides
The hormone which absorption is increases glucose oxidation and glucose
adrenalin
thyroxin
insulin
epinephrine
The term 'nucleons' apples to
neutrons
protons
protons and neutrons
protons and electrons
Gasoline is obtained from crude petroleum by
fractional distillation
fractional crystallisation
sublimation
evaporation
The rate of setting of cement is slowed down by the addition of
quicklime
gypsum
soda lime
bleaching powder
Which of the following is baking soda?
Na2CO3 . 10H2O
NaHCO3
Na2CO3 . H2O
NH4CI
Vinegar is the trade name for
chloroform
acetic acid
phenol
carbon tetrachloride
Flint glass contains
potassium and lead silicates
zinc and barium borosilicates
potassium and calcium silicates
sodium and calcium silicates
One of the ingredients of the paste on the side of a match box is
phosphorus pentaoxide
phosphorus trichloride
phosphorus trisulphide
phosphorus trioxide
A metal which occurs 'free' in nature is
gold
zinc
tin
molybdenum
Which of the following statements regarding natural radioactivity is true?
It is spontaneous disintegration of atoms
It is induced by bombardment with projectiles
It is transmutation of atoms with projectiles
It is dependent on temperature
Dust particles in the air of large industrial cities are removed by
Sedimentation
Electrophoresis
Tyndall effect
Brownian movement
Which one of the following is not radioactive?
Astatine
Francium
Tritium
Zirconium
Glass articles are annealed so that
they may appear better
they can resist the action of acids and alkalies
they lose their brittleness
they can withstand temperature shocks
Washing soda is
sodium hydroxide
sodium carbonate
sodium bicarbonate
potassium chloride
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
Which of the following is a mixture?
Baking soda
Milk
Chloroform
Copper wire
Rain water collected after a shower la very pure because
the initial showers wash the atmosphere free from most of the impurities
it contains desirable salts like sodium chloride and ammonium nitrate
it dissolves the gases in the atmosphere like ozone which are good for health in small quantities
it is supposed to be 'heaven sent'
Rusting is
an oxidation process
a reduction process
a physical change
an electro-chemical process
Which of the following is used as a food preservative?
phenol
washing soda
absolute alcohol
vinegar
Which among the following gases present in the air discolours brass nameplates?
Hydrogen Sulphide
Nitrogen
Carbon-di-oxide
Oxygen
Argyrol used as eye ointment is a solution of
hydrogen peroxide
silver nitrate
tincture iodine
m-cresol
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
Lunar caustic is
calcium sulphate
ammonium chloride
caustic soda
silver nitrate