Question

Which of the following is an incorrect statement?

Bimolecular reactions involve simultaneous
collision between two species.
The probability that more than three molecules
can collide and react simultaneously is very small.
Order of a reaction is a theoretical quantity. It can
be zero and even a fraction but molecularity
cannot be zero or a non-integer.
Molecularity is applicable only for elementary
reactions​

Answer 1

Answer:

1St statement is incorrect in above