Write the principle and equation used for direct titrations.

Write the principle involved in the quantitative estimation of ozone gas.

Explain the principle of a redox reaction used in the construction of galvanic cell ?

Write Planck's equation .

Write the chemical equations of thermite reactions.

Discuss various spectral lines in the hydrogen emission. Write the equation useful for characterisation of spectral lines.

Write equation for carbhlamine reaction .

How is the principle of reverse osmosis? Used for desalination?

Write the necessary equations useful in (a) dilution, (b) mixtures and (c) in titrations.