Which of the following molecules contains only single bonds?
(a)ch3ch2cooh
(b) ch3coch3
(c) hcn
(d)c2h6
(e) co2

The correct answer is option (D) C2H6

Explanation:

Hello!

Let's solve this!

Let's analyze each of the compounds:

(A) CH3 CH2 COOH: At the end of the molecule, -COOH there is a double bond. (Part of the carboxylic acid)

(B) CH3COCH3: there is a double bond in the oxygen part.

(C) HCN: there are double bonds.

(D) C2H6: there are only simple links.

(E) CO2: there are double bonds.

After the analysis we conclude that the correct answer is option (D) C2H6

intermolecular forces are the forces between molecules or particles.

there are two kinds of van der waals forces: weak london dispersion forces and stronger dipole-dipole forces.

in molecule of water there are dipole-dipole forces between negatively charged oxygen from one molecule of water and positively charger hydrogen of another molecule of water.

hydrogen bond is an electrostatic attraction between two polar groups that occurs when a hydrogen atom (h), covalently bound to a highly electronegative atom such as flourine (f), oxygen (o) and nitrogen (n) atoms.