What is the principle involved in Bessemer process ?

(a) Name the reducing agent used in the extraction of zinc oxide. Give the equation. (b) What is the principle involved in zone refining of metals?

Give the principle involved in zone refining process.

Give the principle involved in zone refining process.

What is aufbau principle?

What is the principle used in a pressure cooker ?

Write the principle involved in zone refining .

What is the principle of an electric motor ?