Which of the following changes is not observe | vedclass

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(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

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$PbS \rightarrow PbSO_4$

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(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

In the isolation of metals,the calcination process usually results in:

Choose the correct code regarding the Roasting process.
$I$. It is the process of heating ore in air to obtain the oxide.
$II$. It is an exothermic process.
$III$. It is used for hydrated oxide and oxysalt ore.
$IV$. It is used after the concentration of ore.

Which of the following reactions is common for both self-reduction and carbon reduction when $Pb$ is extracted from galena $(PbS)$?

Roasting of copper pyrites ores is for the following purposes:

The chemical reaction that involves the roasting process is:

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