A. Is always equal to the overall order of reaction
B. May not be equal to the order of reaction
C. Can’t have a fractional value
D. Both B. and C.
Related Mcqs:
- Molecularity of an elementary reaction, P + Q → R + S is ____________________?
A. 1
B. 2
C. 3
D. 4 - The molecularity and the order of reaction respectively, for the hydrolysis of methyl acetate in presence of acids are_______________?
A. 2 & 1
B. 11 & 2
C. 2 & 2
D. 1 & 1 - 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 - The heat of reaction__________________?
A. Depends on the pressure only
B. Depends on the mechanism of reaction only
C. Depends on both pressure and mechanism of reaction
D. Is independent of the mechanism of reaction - In a reversible reaction, a catalyst increases the rate of forward reaction__________________?
A. Only
B. To a greater extent than that of the backward reaction
C. And decreases that of the backward reaction
D. And the backward reaction equally - Specific rate constant for a second order reaction__________________?
A. Is independent of temperature
B. Varies with temperature
C. Depends on the nature of the reactants
D. Both B. and C. - The half life period ‘t’ of a zero order reaction as shown in the bellow figure, is equal to_________________?
A. CA0/2K
B. CA0/K
C. 0.693/K
D. 1/K - Non-catalytic fluid-solid reactions are represented by _______________ model?
A. Continuous reaction
B. Unreacted core
C. Both A. and B.
D. Neither A. and B. - Half life period of a chemical reaction is proportional to CA0 -1, if the reaction is of _______________ order?
A. First
B. Zero
C. Second
D. Third - The exit age distribution of a fluid leaving a vessel (denoted by E) is used to study the extent of non-ideal flow in the vessel. The value of ∫∞ 0 E.dt is____________________?
A. 0
B. 1
C. ∞
D. √2π
