go to the lowesting compounds in terms of the boiling points

go to the lowesting compounds in terms of the boiling points. Start the highest boiling point and t. (You should be able to do this without going to the internet.) 7. Rank CsBr, SeCI2, SiH4, PCIs, MgO

MgO has highest boiling point due to more lattice energy.

SiH4 has least boiling point due to it is non polar compound.