In order to be called steel, an alloy should have iron percentage greater than____________________?

Question: As the impurities are oxidised, the melting point of iron
[A].

decreases.

[B].

remains unchanged.

[C].

increases.

[D].

may increase or decrease ; unpredictable.

Answer: Option C

Explanation:

No answer description available for this question.

Question: Bog iron used for the adsorption of H2S from coke oven gas is
[A].

an intimate mixture of saw dust and iron dust (i.e. moist ferric hydroxide).

[B].

iron impregnated with resin (usually bakelite).

[C].

carbon free iron.

[D].

none of these.

Answer: Option A

Explanation:

No answer description available for this question.