Related Questions

A reaction which is catalysed by an acid is also catalysed by any substance, which has a tendency to
A Lose a proton
B Gain a proton
C Lose an electron
D None of these
A reaction which is catalysed by a base is catalysed by all substances which have a tendency to
A Lose a proton
B Gain a proton
C Gain an electron
D None of these
For a solid catalysed chemical reaction, the effectiveness of solid catalyst depends upon the __________ adsorption.
A Physical
B Chemical
C Both A and B
D Neither A nor B
Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism.
A Proportional to
B Independent of
C Inversely proportional to
D Proportional to the square of
If pore diffusion is the controlling step in a solid catalysed reaction, the catalyst
A Porosity is very important
B Porosity is of less importance
C Internal surface area is utilised efficiently
D None of these
Kinetics of a solid catalysed reaction can best be studied in a __________ reactor.
A Batch
B Plug-flow
C Mixed
D None of these
For high conversion in a highly exothermic solid catalysed reaction, use a __________ bed reactor.
A Fixed
B Fluidised bed reactor followed by a fixed
C Fixed bed reactor followed by a fluidised
D Fluidised
In case of __________ reactions, the reaction rate does not decrease appreciably as the reaction proceeds.
A Catalytic
B Parallel
C Series
D Auto catalytic
The rate of reaction does not decrease appreciably as the reaction proceeds in case of __________ reactions.
A Autocatalytic
B Exothermic
C Endothermic
D Autothermal
For reactions in parallel viz A → P (desired product) and A → Q (unwanted product), if the order of the desired reaction is higher than that of the undesired reaction, a
A Batch reactor is preferred over a single CSTR for high yield
B Tubular reactor is preferred over a single CSTR for high yield
C Both A and B
D Single CSTR is the most suitable

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