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Metallurgy — Chemistry STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12ChemistryMetallurgy2 Marks
Question
Define Calcination.
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Answer

It is the process in which the concentrated ore is strongly heated in the absence of air. This method can also be carried out with a limited supply of air.
$CaCO _3 \stackrel{\Delta}{\longrightarrow} CaO + CO _2 \uparrow$

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