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Question 47 of 63

Q.Find A in the following equation. CaO + 3C --3273 K--> A + CO

(a) CaC2
(b) CO2
(c) Ca
(d) Ca2O
Tamil Nadu DgeTamil Nadu HSC First Year (DGE) Board 2019MCQ· 1mImportance★★★★★
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Heating calcium oxide with excess carbon (coke) at about 3273 K in an electric furnace gives calcium carbide and carbon monoxide.

Calcium carbide is manufactured industrially by heating quicklime (CaO) with coke (carbon) in an electric arc furnace at very high temperature (~3273 K, i.e. ~3000 °C):

CaO + 3C → CaC2 + CO

…

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