When the ore limestone is heated carbon dioxide is given off. This operation

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When the ore limestone is heated carbon dioxide is given off. This operation in metallurgy is known as

Options

(a) smelting
(b) ore dressing
(c) calcination
(d) roasting

Correct Answer:

calcination

Explanation:

CaCO₃(s) → CaO(s) + CO₂(g)

Related Questions:

1. The number of d-electrons in Fe²⁺(Z=26) is not equal to the number of electrons
2. ‘The addition of unsymmetrical reagents to unsymmetrical alkenes occurs in such
3. The given reaction 2FeCl₃ + SnCl₂ → 2FeCl₂ + SnCl₄ is an example of
4. According to IUPAC nomenclature sodium nitroprusside is named as
5. Four successive members of the first row transition elements are listed below

Topics: Surface Chemistry and Isolation of Elements (88)
Subject: Chemistry (2512)

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