Question

which two metals. exist as liquids above 30°c?
what is fractionating column?​

Answer 1

Answer:

gallium and Caesium

fractionating column:

a tall, horizontally subdivided container for fractional distillation in which vapour passes upwards and condensing liquid flows downwards. The vapour becomes progressively enriched in more volatile components as it ascends, and the less volatile components become concentrated in the descending liquid, which can be drawn off.