Chemical Reaction Engineering Objective Type Questions And Answers Pdf

1. Pick out the correct statement 
2. A batch reactor is characterised by 
3. ‘Unreacted core model’ represents the reaction involving 
4. A photochemical reaction is _______________ light 
5. The rate constant of a chemical reaction increases by increasing the 

6. When a catalyst increases the rate of forward reaction, the value of rate constant 

7. In case of_______________ reactions, the reaction rate does not decrease appreciably as the reaction proceeds 
A. series
B. parallel
C. auto catalytic
D. catalytic
Ans: C

8. For nearly isothermal operation involving large reaction time in a liquid-phase reaction, the most suitable reactor is a ________________ reactor 
A. tubular flow
B. stirred tank
C. batch
D. fixedbed
Ans: B

9. In a/an ________________ reactor, there is exchange of heat with the surroundings with sizeable temperature variation 
A.  isothermal
B.  adiabatic
C.  non-adiabatic
D. none of these
Ans: C

10. Pick out the wrong statenient 
A. In a semi-batch reactor, one reactant is charged batchwise, while the other reactant is fed continuously
B. In a batch reactor, which is exclusively used for liquid phase reactions; temperature pressure and composition may vary with time
C. In a continuous flow reactor both the reactants amid the products flow out continuously
D. In a continuous flow reactor, uniform concentration can not be maintained throughout the vessel even in a well agitated system
Ans: D