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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: - Surface tension vanishes at
- Which of the following will not show resonance
- The plot of concentration of the reactant vs time for a reaction is a straight
- At 25⁰ C , the highest osmotic pressure is exhibited by 0.1 M solution of
- The number of hydroxide ions produced by one molecule of sodium carbonate
Topics: Surface Chemistry and Isolation of Elements
(88)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Surface tension vanishes at
- Which of the following will not show resonance
- The plot of concentration of the reactant vs time for a reaction is a straight
- At 25⁰ C , the highest osmotic pressure is exhibited by 0.1 M solution of
- The number of hydroxide ions produced by one molecule of sodium carbonate
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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