Question

Addition of high proportions of manganese makes steel useful in making rail tracks because manganese ______.

Options

• gives hardness to steel.

• helps the formation of oxides of iron.

• can remove oxygen and sulphur.

• can show highest oxidation state of + 7.

Answer 1

Addition of high proportions of manganese makes steel useful in making rail tracks because manganese gives hardness to steel and can remove oxygen and sulphur.

Explanation:

The addition of high proportions of manganese makes steel useful in making rail tracks because manganese gives exceptional hardness and toughness to the steel, allowing it to resist the heavy wear and impact of train wheels. It also functions chemically to remove harmful impurities like oxygen and sulfur during the steelmaking process, resulting in a purer, more reliable metal.