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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: - According to Bohr’s theory, the angular momentum of electron in 5th orbit is
- The IUPAC name of the compound having the formula CCl₃CH₂CHO is
- Baeyer’s reagent is used in the laboratory for
- In third group, iron gives blood red colouration with ammonium thiocyanate
- A solution of nickel sulphate in which nickel rod is dipped is diluted 10 times.
Topics: Surface Chemistry and Isolation of Elements
(88)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- According to Bohr’s theory, the angular momentum of electron in 5th orbit is
- The IUPAC name of the compound having the formula CCl₃CH₂CHO is
- Baeyer’s reagent is used in the laboratory for
- In third group, iron gives blood red colouration with ammonium thiocyanate
- A solution of nickel sulphate in which nickel rod is dipped is diluted 10 times.
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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