Question

What is the difference in electronegativity of each bond for both formaldehyde and ammonia?

Answer 1

Answer:

                     The chemical formula of Formaldehyde is H₂CO and the structural formula is attached below,

                     The chemical formula of Ammonia is NH₃ and the structural formula is attached below,

FORMALDEHYDE:

                              As shown in structure, there are two different types of bonds in formaldehyde,

        (i) C-H Bond

        (ii) C-O Bond

So the electronegativity difference of these bonds are,

(i) C-H Bond

           Electronegativity of Carbon      =  2.5

           Electronegativity of Hydrogen  =  2.1

                                                               _______

           Electronegativity Difference  =       0.4 (non-polar bond)

(ii) C-O Bond

           Electronegativity of Oxygen      =  3.5

           Electronegativity of Carbon       =  2.5

                                                               _______

           Electronegativity Difference  =       1.0   (polar bond)

AMMONIA:

                              As shown in structure, there is one type of bond in ammonia, and that is N-H bond

So the electronegativity difference in this bond is,

N-H Bond

           Electronegativity of Nitrogen      =  3.0

           Electronegativity of Hydrogen    =  2.1

                                                               _______

           Electronegativity Difference  =        0.9   (polar bond)