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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 HS⁻, I⁻, R-NH₂, NH₃ order of proton accepting tendency will be
- What is the maximum number of electrons that can be associated with the following
- The crystal structure of solid Mn(II) oxide is
- Acetaldehyde can not show
- In Lassaigne’s test red colour precipitate is obtained which is due to formation
Topics: Surface Chemistry and Isolation of Elements
(88)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In HS⁻, I⁻, R-NH₂, NH₃ order of proton accepting tendency will be
- What is the maximum number of electrons that can be associated with the following
- The crystal structure of solid Mn(II) oxide is
- Acetaldehyde can not show
- In Lassaigne’s test red colour precipitate is obtained which is due to formation
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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