_____________of a reaction can be defined as the change in concentration of a reactant or product in unit time.
Rate
Pressure
Temperature
None of these
__________is a substance which alters the rate of a reaction without itself undergoing any permanent chemical change.
Reactant
Intermediate
Catalyst
Product
When a sequence of elementary reactions gives us products the reactions are called ___________reaction.
elementary
complex
instantaneous
average
_____________order reaction means that the rate of reaction is independent of the concentration of reactants.
Zero
one
two
three
The representation of rate of reaction in terms of concentration of the reactants is known as ______________.
Partial pressure
Rate law
Average rate
Total rate
The unit of rate is ________________.
mol L-1
mol L-1S-1
mol -1 LS-1
mol -1L-1S-1
The number of reacting species taking part in an elementary reaction, which must collide simultaneously in order to bring about a chemical reaction is called _____________of a reaction.
order
molecularity
The rate of reaction ___________with the passage of time as the concentration of reactants decrease.
Decrease
Increase
Remains same
Increases rapidly
The branch of chemistry which deals with the study of reaction rates and their mechanisms are called_______________.
Thermodynamics
Chemical kinetics
Chemical equilibrium
Polymer science.
The sum of powers of the concentration of the reactants in the rate law expression is called _________of that chemical reaction.
Order
Molecularity
Elementary rate
