Question

oxy-hydrogen flame is used for cutting and welding of metals give reason .....?

Answer 1

Answer:

An oxyhydrogen flame is used for cutting and welding of two metallic pieces together due to the heat produced by the flame , i.e , 2800 ° C . At this temperature the metal gets melted easily and hence it can easily be cut apart or welded together.

Hope it will help you.

Answer 2

Answer:

Hydrogen is used in welding of high melting of metals because in welding it reacts with oxygen and release high amount of energy . This energy is utilised for welding metals.