for a reaction
what is the order of reactions?
2
1
Can not be more than 2
Can not be determined
Order of a Reaction -
The order of a reaction is determined as the sum of the powers of the concentration terms that appear in the experimental rate equation. It is an experimental quantity.
Formula:
The order has a relation with stoichiometry & is determined experimentally. It can be zero/fraction/negative/positive
So, for the given reaction order can not be determined because experimentally determined stoichiometry of powers of the concentration is not given.
Therefore, option(4) is correct