Question

D Question 1 1 pts The strongest intermolecular attractive force found in nitrogen trichloride is Question 2 1 pts Will carbon tetraiodide, carbon tetrabromide, or carbon tetrafluoride have the lowest melting point?

Answer 1

1)

NCl3 is polar because there is lone pair on N

So, the strongest force would be dipole-dipole interaction

Answer: dipole-dipole interaction

2)

All of CI4, CBr4, CF4 are non polar.

So, the intermolecular force in them would be London-Dispersion forces.

Since CI4 has largest molar mass, it will have strongest London-Dispersion forces.

So, CI4 will have highest melting point.

Since CF4 has smallest molar mass, it will have weakest London-Dispersion forces.

So, CF4 will have lowest melting point.

Answer: carbon tetrafluoride