Category: Chemical Reaction

A. Directly proportional to
B. Inversely proportional to
C. Independent of
D. None of these

A. Is same as heat of reaction at constant pressure
B. Is the minimum energy which the molecules must have before the reaction can take place
C. Varies as fifth power of the temperature
D. Both B. and C.

A. Free energy of activation is lowered in the presence of catalyst, which remains unchanged at
the end of reaction
B. A relatively small amount of catalyst can cause the conversion of large amount of reactants
which does not mean that catalyst concentration is important
C. The catalyst does not form an intermediate complex with the reactant
D. The surface of the catalyst does not play an important role during reaction

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

A. 4
B. 8
C. 12
D. 16

A. The time required to reduce the concentration of the reacting substance to half its initial value
B. Half of the space time of a reaction
C. Half of the residence time of a reaction
D. None of these

A. Changes on changing the concentration units
B. Is not a function of the unit of time
C. Has unit of time-1
D. None of these

A. Not feasible
B. Just feasible
C. Very much feasible
D. Unpredictable as ΔG is no measure of feasibility of a reaction

A. I, II, III
B. III, II, I
C. III, I, II
D. II, III, I

A. DE = DM + DK
B. 1/DE = 1/DN + DK
C. DE = DM . DE
D. DE = DN/DE