Pseudo First Order Reactions

IMPORTANT

Pseudo First Order Reactions: Overview

In this topic, we will study pseudo first order reactions. It also contains some examples to explain the pseudo order reactions.

Important Questions on Pseudo First Order Reactions

EASY
IMPORTANT

Hydrolysis of esters is an example of _____ order reaction. 

MEDIUM
IMPORTANT

In the hydrolysis of an ester in presence of large excess of water. The order of the reaction is 

HARD
IMPORTANT

What is pseudo-first order reaction? Give one example.

MEDIUM
IMPORTANT

The value of rate of a pseudo first order reaction depends upon

HARD
IMPORTANT

Suppose the inversion of cane sugar proceeds with half-life of 500 minute at pH=5 for any concentration of sugar. However, if pH=6, the half-life changes to 50 minute. Find out the way in which rate law expression for the sugar inversion can be written:

HARD
IMPORTANT

Consider the following statements,

The rate law for the acid catalysed hydrolysis of an ester being given as

Rate=kH+ester=k[ester].

If the acid concentration is doubled at constant ester concentration

1. The second order rate constant, k is doubled.

2. The pseudo first order rate constant, k is double.

3. The rate of the reaction is doubled.

Which of the above statements are correct?

MEDIUM
IMPORTANT

Which of the following is not the example of pseudo unimolecular reaction?

MEDIUM
IMPORTANT

Inversion of cane-sugar in dilute acid is a:

EASY
IMPORTANT

Acid hydrolysis of sucrose is a