Question

Formaldehyde (CH2O) has a much higher boiling point ( - 19.5o C) than ethane (C2H6) ( - 88oC).
Which of the following statements are true, based on this information and the structures of these compounds?
(a) Formaldehyde has dipole forces and ethane does not.
(b) Formaldehyde has dispersion forces and ethane does not.
(c) Both would be liquids at room temperature.
(d) Formaldehyde has stronger intermolecular forces than ethane.

Answer 1

Answer:

D

Explanation:

Formaldehyde is an organic compound having a carbonyl group with two hydrogen groups. In general, any compound having oxygen and hydrogen in same molecule has higher and stronger intermolecular forces than any other who doesn't have. Formaldehyde exhibits this particular property, as oxygen being the electronegative atom attracts hydrogen of the other formaldehyde molecule which results in having a much higher boiling point as compared to Ethane which doesn't has the same functionality.