Question

Rate of the reaction depends on:
A. Temperature
B. Concentration of the reactants
C. Presence of the catalyst
D. All of the above

Answer 1

Hint: All the above factors seem to have some or the other influence and how it affects the rate of the reaction. concentration of the reactants so we will get to know that the rate and the concentration are interrelated to each other as when the concentration will be high the reaction will take place

Complete answer:
Firstly we will discuss the types of reactions which will include the three types which are as follows:
The first one is very fast reactions as the name suggests they take place very fast.
Second comes the very slow reactions that take a lot of time. Finally comes the moderate reaction in which these reactions occur at moderate speed.
Then we will talk about the rate of a reaction which is basically the speed with which the reactions are taking place. When we are talking about the rate of a reaction then we must keep in mind some points which affect the rate of a reaction.

So the rate basically depends on the experimental factors which we will discuss one by one:
- Firstly comes the concentration of the reactants so we will get to know that the rate and the concentration are interrelated to each other as when the concentration will be high the reaction will take place with a greater speed and vice versa.
- Secondly comes the temperature as we have already discussed in the same way the temperature and the rate are related to each other as more the temperature more will be the rate .
- Thirdly comes the catalyst so they are the substances which do not get involved in the reaction but increases the rate of the reaction.

Hence, option D is correct.

Note:
Other than these factors there are two more factors which also influence the rate of the reaction and they are the surface area of the reactants and further the presence of light. Also some other factors are also there which come into action depending upon the situation.