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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: - When ethyl chloride and alcoholic KOH are heated, the compound obtained is
- In alkaline hydrolysis of a tertiary alkyl halides by aqueous alkali,
- A gas mixture contains 50% He and 50% Methane by volume. What is the percent
- At 27⁰C latent heat of fusion of a compound is 2930 J/mol. Entropy change is
- Which of the following statements about primary amines is false
Topics: Surface Chemistry and Isolation of Elements
(88)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When ethyl chloride and alcoholic KOH are heated, the compound obtained is
- In alkaline hydrolysis of a tertiary alkyl halides by aqueous alkali,
- A gas mixture contains 50% He and 50% Methane by volume. What is the percent
- At 27⁰C latent heat of fusion of a compound is 2930 J/mol. Entropy change is
- Which of the following statements about primary amines is false
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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