Question

why do we use glass beads in a condenser ?

Answer 1

Glass beads are used in a condenser to prevent bursting of the condenser due to excessive heating. The glass beads cool the condenser and hence prevent it from getting excessive heated.

Answer 2

The efficiency of fractional distillation depends on the use of the fractionating coloumn. The fractionating coloumn is packed with glass beads. It provides a large area for vapourisation and condensation of the liqi mixture.