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)
