Question

 

Identify the correct order of boiling points of the following compounds

CH3CH2CH2CH2OH,    CH3CH2CH2CHO, CH3CH2CH2COOH

               1                              2                                 3

Solution

Correct option is

3 > 1 > 2

In these compound ‘C’ forms dimer due to hydrogen bonds and compound ‘A;’ form hydrogen bonds. Hence in these stronger hydrogen bond is in compound ‘C’ than compound ‘A’. Compound ‘B’ does not form hydrogen bond. Thus they follow the following order of mol.wt 3 > 1 > 2. So they have same order in their boiling point.

SIMILAR QUESTIONS

Q1

Which of the following hydrocarbons has the lowest dipole moment?

Q2

Which of the following acids has the smallest dissociation constant?

Q3

Among the following compounds, the most acidic is

Q4

 

The bond between carbon atom (1) and carbon atom (2) in compound  

                

                       1      2 

Involves the hybridisation as

Q5

Polarisation of electrons in acrolein may be written as

Q6

The compound which gives the most stable carbonium ion on dehydration is

Q7

The number of sigma and pi-bonds in 1-butene 3-yne are

Q8

Amongst the following, the most basic compound is 

Q9

The hybridisation of carbon atoms in C―C single bond

Q10

 

What is decreasing order of strength of the bases?