Pseudo First Order Reaction:
A pseudo first order reaction is a reaction that appears to be a first order reaction even though it may actually be a higher order reaction. This occurs when the concentration of one reactant is significantly larger than the concentration of other reactants, causing the reaction rate to depend only on the concentration of the limiting reactant.

Explanation:
Among the given options, the acid catalysed hydrolysis of ethyl acetate is an example of a pseudo first order reaction. Let's understand why:

1. Acid Catalysed Hydrolysis of Ethyl Acetate:
In this reaction, ethyl acetate reacts with water in the presence of an acid catalyst (such as sulfuric acid) to form acetic acid and ethanol. The reaction can be represented by the following equation:

CH3COOC2H5 + H2O → CH3COOH + C2H5OH

2. Rate Determining Step:
The rate determining step for this reaction is the reaction between ethyl acetate and the acid catalyst. This is because the concentration of ethyl acetate is much larger than the concentration of water and the acid catalyst. Therefore, the overall rate of the reaction depends only on the concentration of ethyl acetate, making it a pseudo first order reaction.

3. Pseudo First Order Rate Equation:
The rate equation for a pseudo first order reaction is given by:

Rate = k [A]

Where:
- Rate is the rate of the reaction
- k is the rate constant
- [A] is the concentration of the limiting reactant (ethyl acetate in this case)

4. Experimental Verification:
To experimentally verify that the acid catalysed hydrolysis of ethyl acetate is a pseudo first order reaction, the reaction can be carried out at different initial concentrations of ethyl acetate while keeping the concentrations of water and the acid catalyst constant. The reaction rate can then be measured and plotted against the concentration of ethyl acetate.

If the plot of the reaction rate against the concentration of ethyl acetate gives a straight line, it confirms that the reaction is pseudo first order. This indicates that the reaction rate is directly proportional to the concentration of ethyl acetate, supporting the pseudo first order rate equation.

Therefore, option 'C' (acid catalysed hydrolysis of ethyl acetate) is the correct answer as it represents a pseudo first order reaction.