Question

Cu reacts with oxygen at 1000°C temperature gives CuO.
true or false?

Answer 1

The interaction between CuO and Al2O3 and the reactivity of copper aluminates below 1000 °C and their implication on the use of the Cu–Al–O system for oxygen storage and production

Answer 2

Answer:

True, $Cu$ reacts with oxygen at $1000^{\circ}C$ temperature gives $CuO$.

Explanation:

Cuprous oxide forms as a red oxide in air at temperatures below about $300^{\circ}C$. At higher temperatures , formation of black cupric oxide, $CuO$ is favored.

$2Cu +O_2\rightarrow CuO$

The red cuprous oxide is not readily soluble in dilute sulfuric acid that is used to remove annealing oxides from process copper. Oxidizing chemicals are added to the dilute sulfuric acid pickle , such as sodium dichromate to oxidize cuprous oxides to cupric, which are removed (dissolved) in the dilute sulfuric acid ( $10-20\%$ vol.)

Therefore,  $Cu$ reacts with oxygen at $1000^{\circ}C$ temperature gives $CuO$.

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