Month: February 2019

A. Free energy of activation is lowered in the presence of catalyst, which remains unchanged at
the end of reaction
B. A relatively small amount of catalyst can cause the conversion of large amount of reactants
which does not mean that catalyst concentration is important
C. The catalyst does not form an intermediate complex with the reactant
D. The surface of the catalyst does not play an important role during reaction

A. Accompanied with emission of light
B. Catalysed by light
C. Initiated by light
D. All A., B. & C.

A. Fixed
B. Fluidised bed reactor followed by a fixed
C. Fixed bed reactor followed by a fluidised
D. Fluidised

A. Quality & yield cannot be achieved in continuous processes, because of long residence time
B. Sales demand is fluctuating
C. Both A. & B.
D. Neither A. nor B.

A. Decreases
B. Increases
C. Is at the highest allowable temperature throughout
D. First increases and then decreases

A. Suitable for gas-phase reactions on commercial scale
B. Suitable for liquid phase reactions involving small production rate
C. Least expensive to operate for a given rate
D. Most suitable for very large production rate

A. First
B. Second
C. Third
D. Zero

A. Tank in series
B. Dispersion
C. Both A. & B.
D. Neither A. nor B.

A. It is a reversible reaction
B. It is an exothermic reaction
C. The energy of reacting molecules exceeds the activation energy by absorption of light
D. None of these

A. Achieving cent percent conversion of reactants into products
B. Large scale gaseous phase reactions
C. Liquid phase reactions
D. Obtaining uniform polymerisation products in highly exothermic reactions