Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other earth moving equipments contain iron, carbon and

Question: Froth floatation is used for
[A].

washing fine coal dust (< 0.5 mm size).

[B].

washing lump coal (> 80 mm size).

[C].

removing ash from the coal based on difference in specific gravity of coal and ash.

[D].

all (a), (b)and(c).

Answer: Option A

Explanation:

No answer description available for this question.