Which alloy is used to make surgical instruments?

Which process occurs at the cathode during the process of electrolysis?

State whether the following statement is true or false:
Copper does not burn in air, but the hot metal is coated with a black-coloured layer of copper $(II)$ oxide.

Which acid is formed when sulfur dioxide reacts with water?

In the froth flotation process,which particles get wetted by turpentine and rise to the surface of the liquid mixture with the froth?

Which method is used to collect $H_2$ gas in a gas jar in the laboratory?