Predict which substance in each of the following pairs would have the greater intermolecular forces co 2 or ocs ch 3 ch 2 ch 2 nh 2 or h 2 nch 2 ch 2 nh 2

OCS

H2NCH2CH2NH2

Explanation:

The intermolecular forces are the forces that join together the molecules in a substance. There're three types of it:

1. CO2 is a linear molecule that has two C=O bonds. These bonds are polar (C and O have differents electronegativities), but the dipole moment is canceled, and equal to 0, thus it's a nonpolar molecule, and has dipole induced - dipole induced force.

OCS is linear too, but the moment is not 0, because the polarity of the C=O is higher than the polarity of C=S, thus the molecule is polar, and the force is dipole-dipole. So, OCS has a greater intermolecular force.

2. CH3CH2CH2NH2 is a polar molecule that has the hydrogen bond as intermolecular force (H is bonded to N). But it also has a dipole induced -dipole induced force at the other part of the molecule.

H2NCH2CH2NH2 has hydrogen bonds on both sides of the molecules, thus, it has the strongest force.

the correct answer to this question is 2