Which of the following changes is not observe | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) Calcination is the process of heating an ore strongly in the absence of air to remove volatile impurities or moisture and to convert carbonates or

Vedclass · Accepted Answer

$PbS \rightarrow PbSO_4$

Vedclass · Answer

(C) Calcination is the process of heating an ore strongly in the absence of air to remove volatile impurities or moisture and to convert carbonates or hydroxides into oxides.$PbCO_3 \rightarrow PbO + CO_2$ (Calcination)$Fe_2O_3 \cdot 3H_2O \rightarrow Fe_2O_3 + 3H_2O$ (Calcination)$PbS + 1.5O_2 \rightarrow PbO + SO_2$ (Roasting)$PbS + 2O_2 \rightarrow PbSO_4$ (Roasting)$PbSO_4$ is typically formed during the roasting of sulfide ores,not calcination.Therefore,the change $PbS \rightarrow PbSO_4$ is not observed during calcination.

Which of the following changes is not observed when an ore is heated for calcination?

Similar Questions

Calcination is the process of heating the ore :

Calcination is the process in which

Which one of the following is not an example of calcination?

Which of the following statements,about the advantage of roasting of sulphide ore before reduction,is not true?

$A$ sulphide ore is first converted into its oxide before reduction. This is done because

Vedclass Test Series

Exam Paper Generator

Online Exam Module