Question

A Japanese sword maker heats a mixture of iron and charcoal. He repeatedly heats, folds, and flattens the mixture more than a thousand times. What is he doing? He is making a metallic bond and adding impurities He is making an ionic compound and removing impurities. He is making an alloy and removing impurities He is making an iron ore and adding impurities. Next Q Search or enter address esc & 2 3 4 5 6 7 Q W E R т Y U А J Z х с V В I LL S

Answer 1

He is making an ionic compound and removing impurities

Because folding remove impurities and even out the carbon content ,while repeatedly heating and flatting create ionic compound which enhance it's toughness