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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: - 10g of hydrogen and 64g of oxygen were filled in a steel vessel and exploded.
- By passing air over red hot coke the gas obtained is
- Which of the following substances is used, in laboratory
- Which one will give positive iodoform test
- Which of the following statement is true for an electrochemical cell
Topics: Surface Chemistry and Isolation of Elements
(88)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- 10g of hydrogen and 64g of oxygen were filled in a steel vessel and exploded.
- By passing air over red hot coke the gas obtained is
- Which of the following substances is used, in laboratory
- Which one will give positive iodoform test
- Which of the following statement is true for an electrochemical cell
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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