Question
When a chemical reaction takes place, during the course of the reaction the rate of reaction
A.
keeps on increasing with time
B.
remains constant with time
C.
keeps on decreasing with time
D.
shows irregular trend with time
Answer :
keeps on decreasing with time
Solution :
Rate of reaction $$ \propto $$ cone. of reactants
As the reaction proceeds, concentration of the reactants decreases hence the rate also keeps on decreasing with time.