- (A) In a batch reactor, which is exclusively used for liquid phase reactions; temperature pressure and composition may vary with time
- (B) In a semi-batch reactor, one reactant is charged batch wise, while the other reactant is fed continuously
- (C) In a continuous flow reactor, uniform concentration cannot be maintained throughout the vessel even in a well agitated system
- (D) In a continuous flow reactor, both the reactants and the products flow out continuously
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- (A) The integral method of analysing kinetic data is used when the data is scattered
- (B) The differential method of analysing kinetic data requires more accurate or larger amounts of data
- (C) When the reaction rate is independent of temperature, the reaction is said to be of zero order
- (D) The ratio of volumes of plug flow reactor to that of mixed reactor is always less than one for identical feed composition, flow rate, conversion and for all positive reaction orders
- (A) Reactions with high activation energies are very temperature sensitive
- (B) Chemical equilibrium is a static state
- (C) A photochemical reaction is catalysed by light
- (D) A chemical reaction occurs when the energy of the reacting molecule is less than the activation energy of the reaction
- (A) Chemical reactions with high activation energy are very temperature sensitive
- (B) A flat velocity profile exists in a plug flow reactor
- (C) The residence time for all the elements of fluid in case of a P.F.R. need not be same
- (D) Half life of a reaction increases with increased initial concentration for reaction orders more than one
- (A) A pale color of petroleum product indicates lower viscosity
- (B) Color of petroleum products indicates the degree of refinement
- (C) Lighter petroleum distillates are lighter in color than the heavier residual oils
- (D) Fluorescence of oils helps to detect its adulteration
- (A) Higher temperature is employed in visbreaking than in thermal cracking
- (B) Pyrolysis is a mild thermal cracking process
- (C) Lead susceptibility of petrol produced by catalytic process is more than that produced by thermal cracking
- (D) Operating pressure and temperature in thermal cracking process is more than that in catalytic cracking process
- (A) Higher specific gravity of petroleum products means higher C/H ratio
- (B) Aromatics have lower specific gravity than corresponding paraffins
- (C) Hydrocarbons of low specific gravity (e.g., paraffins) possess the maximum thermal energy per unit volume
- (D) Hydrocarbons of high specific gravity (
- (E) g., aromatics) possess the maximum thermal energy per unit weight
- (A) Autocatalytic reactions are exemplified by microbial fermentation reactions
- (B) The slowest step has the greatest influence on the overall reaction rate in case of an irreversible series reaction
- (C) The fractional conversion at any time is same for both the constant as well as the variable volume system in case of an irreversible unimolecular type first order reaction
- (D) Hydrolysis of ester in presence of alkali or acid is a zero order reaction
- (A) Visible radiation provides the necessary activation energy in photochemical reactions
- (B) The order and molecularity of a complex reaction may not be the same
- (C) For a second order reaction, the slope of the graph/plot between rate and (concentration) is equal to the rate constant (k)
- (D) Molecularity of the reaction is always a whole number greater than zero
- (A) A catalyst does not alter the final position of equilibrium in a reversible reaction
- (B) A catalyst initiates a reaction
- (C) A catalyst is specific in reaction
- (D) A catalyst remains unchanged in chemical composition at the end the reaction
