Related Questions

Burning of coal produces oxides of sulphur and nitrogen which combined with water vapor leads to
A acid rain
B brackish water
C forest fire
D soil pollution
The concentration (weight %) of nitric acid produced by the oxidation of ammonia and absorption of nitrogen oxides with water is about __________ percent.
A 60
B 30
C 95
D 100
β-rays emission in radioactive disintegration is always accompanied by the emission of
A γ-rays
B α-rays
C Neutrons
D None of these
Catalyst used in the 'catalytic converter' employed in automobile exhaust line for complete combustion/oxidation of carbon monoxide, nitrogen oxides and hydrocarbons is
A Alumina
B Platinum
C Vanadium pentoxide
D Iron oxide
Often visible as smog , ozone is formed in the atmosphere form" hydrocarbons and nitrogen oxides , two major pollutants emitted by automobiles react with sunlight .
A ozone is formed in the atmosphere from
B ozone is formed in the atmosphere when
C ozone is formed in the atmosphere when
D ozone is formed in the atmosphere ,and when
Choose the correct option to replace the quotation part of each sentence. Often visible as smog, 'ozone is formed in the atmosphere from' hydrocarbons and nitrogen oxides, two major pollutants emitted by automobiles, react with sunlight.
A ozone is formed in the atmosphere from
B ozone is formed in the atmosphere when
C ozone is formed in the atmosphere, and when
D ozone, formed in the atmosphere when
Which one of the following oxides of Nitrogen is also known as Laughing Gas?
A NO2
B N2O5
C NO
D N2O
Which of the following is an adsorbant for removal of nitrogen oxides from gas/air?
A Active carbon
B Silica gel
C Bog iron (iron oxide)
D Pulverised limestone
Tolerable limit of nitrogen oxides in air is __________ ppm.
A 0.1
B 1
C 5
D 25
It is dangerous to leave the car engine running in a closed garage, because it may cause serious pollution due to poisoning by emission of
A CO2
B CO
C Unburnt petrol
D SO2

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