The rate constant of a reaction depends on the __________________?

A. Initial concentration of reactants
B. Time of reaction
C. Temperature of the system
D. Extent of reaction

The enzyme which can catalyse the conversion of glucose to ethyl alcohol is ___________________?

A. Invertase
B. Maltase
C. Diastase
D. Zymase

In a CSTR _______________ varies with time ?

A. Reaction rate
B. Concentration
C. Both A. & B.
D. Neither A. nor B.

The rate of a gas phase reaction is given by K . CA . CB. If the volume of the reaction vessel is reduced to l/4th of its initial volume, then the reaction rate compared to the original rate will be _______________ times?

A. 4
B. 16
C. 8
D. 2

A plug-flow reactor is characterized by _____________________?

A. High capacity
B. Presence of axial mixing
C. Presence of lateral mixing
D. Constant composition and temperature of reaction mixture

In which of the following reactions, the equilibrium will shift to the right, if the total pressure is increased ?

A. H2 + Cl2 ⇌ 2HCl
B. N2 + O2 ⇌ 2NO
C. N2O4 ⇌ 2 NO2
D. H2 + I2 ⇌ 2HI

A chemical reaction, A → 3B, is conducted in a constant pressure vessel. Starting with pure A, the volume of the reaction mixture increases 3 times in 6 minutes. The fractional conversion is ___________________?

A. 0.33
B. 0.5
C. 1
D. Data insufficient, can’t be predicted

In the fluid catalytic cracker (FCC), the cracking reaction is _____________ (i) and the regeneration is _______________ (ii) _______________?

A. (i) exothermic (ii) endothermic
B. (i) exothermic (ii) exothermic
C. (i) endothermic (ii) endothermic
D. (i) endothermic (ii) exothermic

Effectiveness factor of a catalyst pellet is a measure of the _________________ resistance?

A. Pore diffusion
B. Gas film
C. Chemical reaction
D. None of these

BET apparatus is used to determine the ___________________?

A. Specific surface of a porous catalyst
B. Pore size distribution
C. Pore diameter
D. Porosity of the catalyst bed