Related Questions

Automobile exhaust is passed through two compartments catalytic converter employing platinum as catalyst for
A Conversion of CO into CO2 in the second compartment
B Conversion of NOx into N2 and NH3 in the first compartment
C Oxidation of unburnt hydrocarbon fuel in the second compartment
D All of the above
During which of the following operating conditions of an automobile, carbon monoxide content in the exhaust gas is maximum?
A Idle running
B Acceleration
C Cruising
D Deaccelaration
Catalytic action in a catalytic chemical reaction follows from the ability of catalyst to change the
A Activation energy
B Equilibrium constant
C Heat of reaction
D None of these
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
A fuel containing carbon and carbon monoxide (but containing no hydrogen or its compounds) is burnt in pure oxygen at constant pressure. Its gross calorific value as compared to net calorific value will be
A More
B Less
C Same
D Data insufficient; can't be predicted
A contractor employed 30 men to do a piece of work in 38 days. After 25 days , he employed 5 men more and the work was finished one day earlier. How many days he would have been behind, if he had not employed additional men?
A 1
B 114
C 134
D 112
Catalytic desulphurisation process used for sweetening of straight run gasoline and kerosene uses __________ as catalyst.
A Bauxite
B Fuller's earth
C Activated clay
D All of the above
Which is a catalyst promoter used in catalytic ammonia synthesis reaction?
A Al2O3
B Cr2O3
C K2O
D MnO
Which is the most effective catalyst used in catalytic cracking of petroleum products?
A Iron oxide
B Nickel
C Vanadium pentoxide
D Zeolite

Next steps