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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: - In acidic medium, the equivalent weight of KMnO₄ is
- Acetamide reacts with NaOBr in the alkaline medium to form
- Choose the correct statements
- Which of the following oxides is not expected to react with sodium hydroxide
- The concentration of [H⁺] and [OH⁻] of a 0.1 M aqueous solution of 2% ionised
Topics: Surface Chemistry and Isolation of Elements
(88)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In acidic medium, the equivalent weight of KMnO₄ is
- Acetamide reacts with NaOBr in the alkaline medium to form
- Choose the correct statements
- Which of the following oxides is not expected to react with sodium hydroxide
- The concentration of [H⁺] and [OH⁻] of a 0.1 M aqueous solution of 2% ionised
Topics: Surface Chemistry and Isolation of Elements (88)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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