Question

The vapour pressure of benzene at 30°C is 121.8 mm. By adding 15 g of non-volatile solute in 250 g of benzene, its vapour pressure is decreased to 120.2 mm. The molecular weight of solute is:

विकल्प

• 156.6 g

• 267.4 g

• 356.3 g

• 467.4 g

Answer 1

356.3 g