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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: - How enzymes increases the rate of reaction
- Which of the following organic compounds has same hybridization as its
- For which one of the following minerals, the composition given is incorrect
- Specific conductance of 0.1 M nitric acid is 6.3 ˣ 10⁻² ohm⁻¹ cm⁻¹.
- CaCO₃ ⇌ CaO + CO₂ reaction in a lime kiln goes to completion because
Topics: Surface Chemistry and Isolation of Elements
(88)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- How enzymes increases the rate of reaction
- Which of the following organic compounds has same hybridization as its
- For which one of the following minerals, the composition given is incorrect
- Specific conductance of 0.1 M nitric acid is 6.3 ˣ 10⁻² ohm⁻¹ cm⁻¹.
- CaCO₃ ⇌ CaO + CO₂ reaction in a lime kiln goes to completion because
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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