Write the principle of Thermit process.

How are the metals used as semiconductors purified? Explain the principle of the process.

What is the role of sodium xanthates in froth flotation process? State the basic principle of the process zone refining.

Write the principle of estimation of carbon and hydrogen in an organic compound.

Write the principle of laboratory preparation of H_2O_2 with equation.

Write the principle of basic oxygen process (BOP) in preparing steel.

Write the principle of used for refining of germanium.

Write the principle of working of a metre bridge .

Write the principle of self reduction press with an example?

Write the basic principles of Solvey process.

Write the principle of the following : Froth-floatation process