In paper chromatography ------constitutes the stationary phase and ---------acts as mobile phase

What is the difference between phase and path?

What criterion is followed for the selection of the stationary phase in chromatography?

What does the stationary phase of the sigmoid growth curve indicate and why is it so?

Name the two phases in the life-cycle of a plant.

A plot is obtained for two volatile liquids A & B as follows. From the plot answer the following. What is the mol fraction of vapour phase of componant A over the solution?

What are dispersed phase and dispersion medium.?

Name two location/sites in the plant body that represent meristematic phase of growth.

In the solid phase of phosphorus penta chlo-ride the structure of cation part is & anion part is.

Two monachromatic waves propagating in the same direction with amplitudes A and 3A respectively and differing in phase by pi /3 superpose. Calculate the amplitude of the resultant wave.