In the nitrogen cycle, denitrifying bacteria
oxidise ammonia to nitrates
convert nitrogen into ammonia
oxidise ammonia to free nitrogen
oxidise ammonia to oxides of nitrogen
Correct Answer :
C. oxidise ammonia to free nitrogen
Related Questions
The compound of iron used in the manufacture of blue-black ink is
ferric chloride
ferric sulphate
ferric thiocyanate
ferrous sulphate
Burglar proof safes are made of
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Manganese steel
Chromium steel
Nickel steel
Which among the following is a solid non-metal?
chlorine
mercury
water
iodine
Iron is rendered passive by
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coconut charcoal
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urea
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ammonium sulphate
calcium cyanamide
Lunar caustic is
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ammonium chloride
caustic soda
silver nitrate
Marsh gas is
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ethylene
acetylene
methane
The value of Avogadro Number is
6.023 x 1022
1 x 10-14
cl 6.056 x 10-6
6.023 x 1023
Fructose is also called
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fruit sugar
beet sugar
blood sugar
________ is left behind after distillation of petroleum.
Arsenic
Barium
Benzene
Bitumen
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carbon monoxide and chlorine
carbon dioxide and chlorine
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Heated saw dust catches fire when a drop of concentrated nitric acid is added to it. This is due to
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reduction
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Graphite la a good conductor of electricity because
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red lead
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Washing soda is
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sodium carbonate
sodium bicarbonate
potassium chloride
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iodine
sulphur
graphite
phosphorus
White vitriol is
ZnSO4 . 7H2O
FeSO4 . 7H2O
MgSO4 . 7H2O
CaSO4 . 2H2O
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nitric acid
oxalic acid
carbonic acid
acetic acid
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the manufacture of explosives
the manufacture of dyes
refrigerators
the preparation of drugs
The neutron was discovered by
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Madam Curie
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Aston
Ozone occurs in the upper layers of air in the atmosphere because
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in the lower layers it becomes unstable
ultra-violet light is present only in the upper layers
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Which of the following is used as an illuminant?
Gasoline
Benzoline
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lead chloride
mercurous chloride
mercuric chloride
calcium sulphate
Annealing of glass is done in
a cupel
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Carbon dioxide
Ammonia
Chlorine
Hydrogen sulphide