Question

The role of calcination in metallurgical operations is
(a) to remove moisture
(b) to decompose carbonates
(c) to drive off organic matter
(d) to decompose carbonates and drive off moisture and
organic matter

Answer 1

The role of calcination in metallurgical operations is:

(d) to decompose carbonates and drive off moisture and  organic matter

- Strong heating of ore in the absence of air is known as calcination

- Usually, carbonates are converted into oxides by this method

- the moisture is removed by this method as in the case of iron ore

- Apart from this, organic matter is also removed by this method

- So the correct answer is option (d)