What type of bonding is represented in figure 2-

Could someone me find the answer to this problem.

The vapour pressure of benzene is 53.3 kpa at 60.6 °c, but it fell to 51.5 kpa when 19.0 g of a non-volatile organic compound was dissolved in 500 g of benzene. calculate the molar mass of the compound.

What are the similarities & differences between a thermistor and a light dependent resistor in physics?