Question

The incorrect statement is:

• A. all the collisions between reactant molecules do not lead to a chemical change
• B. a zero order reaction proceeds at a constant rate independent of concentration or time
• C. fast reactions have low activation energies
• D. in a first order reaction, the reaction ideally takes finite time to be completed

Answer 1

The correct option is D in a first order reaction, the reaction ideally takes finite time to be completed

For a reaction to take place, the reacting molecules must colloid together but only those collisions, in which colliding molecules possess certain minimum energy is called threshold energy.
Zero-order reaction, $rate=k[A{]}^0=k$
So, a zero order reaction proceeds at a constant rate independent of concentration or time.
Every first reaction takes infinite time for completion.