A. One of the reactants acts as a catalyst
B. One of the products acts as a catalyst
C. Catalysts have very high selectivity
D. No catalyst is used
Related Mcqs:
- Autocatalytic reactions are best carried out in a_________________?
A. CSTR
B. CSTR in series
C. Plug flow reactor
D. Recycle reactor - The rate of an autocatalytic reaction as shown in the bellow figure, is given by – rA = k . CA . CB. In this case, the__________________?
A. Plot of – rA Vs CA is a straight line with slope k
B. Plot of – rA Vs CA is a hyperbola
C. Rate of disappearance of reactant A is maximum, where CA = CB
D. Both B & C - Rate of an autocatalytic chemical reaction is a function of ___________________?
A. Temperature only
B. Pressure only
C. Composition only
D. All A., B. and C. - For an autocatalytic reactor, the suitable reactor set up is__________________?
A. P.F. reactors in series
B. CSTR in series
C. CSTR followed by P.F. reactor
D. P.F. reactor followed by CSTR - Which of the following is an autocatalytic reaction ?
A. Photochemical reactions
B. Microbial fermentation reaction
C. Enzyme fermentation reaction
D. Ammonia synthesis reaction - In which of the following gaseous phase reactions, the equilibrium of the reaction remains unaffected by pressure changes ?
A. 2O3 ⇌ 3O2
B. N2 + O2 ⇌ 2NO
C. 2NO2 ⇌ N2O4
D. 2SO2 + O2 ⇌ 2SO3 - For multiple reactions, the flow pattern within the vessel affects the ____________________?
A. Size requirement
B. Distribution of reaction products
C. Both A. and B.
D. Neither A. nor B. - In solid catalysed reactions the diffusional effects are more likely to affect the overall rate of reaction for________________?
A. Fast reactions in catalyst of small pore diameter
B. Fast reaction in catalyst of large pore diameter
C. Slow reactions in catalyst of small pore diameter
D. Slow reactions in catalyst of large pore diameter - The reactions of high molecularity are rare, because________________?
A. Of very large activation energy of many bodies
B. Of low probability of many body collisions
C. Many body collisions are not favoured energetically
D. Of requirement of very large concentration for such reactions - ‘N’ plug flow reactors in series with a total volume ‘V’ gives the same conversion as a single plug flow reactor of volume ‘V’ for _______________ order reactions?
A. First
B. Second
C. Third
D. Any
