Think about what would happen if this substance were first in the solid phase, then melted in a liquid. what can you say about the melting point of the solid compared to the freezing point of the liquid?

The melting point of the solid is higher in temperature then it is compared to the freezing point of the liquid.

Explanation:

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.