Which of the following statements is not corr | vedclass

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(A) Calcination is a process of heating an ore in a limited supply of air or in the absence of air to a temperature below its melting point. $1$. Carb

Vedclass · Accepted Answer

Impurities are removed in the form of elemental vapours

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(A) Calcination is a process of heating an ore in a limited supply of air or in the absence of air to a temperature below its melting point. $1$. Carbonate ores decompose to form oxides (e.g.,$ZnCO_3 \rightarrow ZnO + CO_2$). $2$. Moisture and volatile impurities are removed. $3$. The process is kept below the melting point to prevent fusion. $4$. Option $A$ is incorrect because the removal of impurities as elemental vapours is characteristic of roasting or specific distillation processes,not calcination. $5$. Option $D$ is incorrect because calcination does not involve oxidation; in fact,it is often used for ores that are already in the desired oxidation state or to remove volatile components.

Which of the following statements is not correct regarding calcination?

Similar Questions

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

Consider two chemical reactions $(A)$ and $(B)$ that take place during metallurgical processes:
$(A)$ $ZnCO_{3(s)} \longrightarrow ZnO_{(s)} + CO_{2(g)}$
$(B)$ $2ZnS_{(s)} + 3O_{2(g)} \longrightarrow 2ZnO_{(s)} + 2SO_{2(g)}$
The correct names for these processes are:

Explain Calcination and Roasting in detail.

Which of the following is an example of roasting?

Which of the following reactions is an example of the calcination process?

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