Question

1. Magnetite is the best quality iron ore.
2. It has lime in it, which makes it self-fluxing.

Options

• (B) contradicts (A).

• (B) is the reason for (A).

• (A) is true but (B) is false.

• (A) and (B) are independent of each other.

Answer 1

(A) is true but (B) is false.

Explanation:

Magnetite is described as the best quality iron ore (high Fe content, ~70% and called black ore).
However, the claim that “it has lime in it, which makes it self‑fluxing” is not true for magnetite. The references state that siderite (iron carbonate), not magnetite, is self‑fluxing due to the presence of lime/associated carbonates; magnetite is not described as containing lime or being self‑fluxing.