Question

Which of the following metal gives a black basic oxide on heating
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Answer 1

Answer:

For example, when copper is heated in air, it combines with oxygen to form copper(II) oxide, a black oxide. Similarly, aluminium forms aluminium oxide. We have observed in Activity 3.9 that all metals do not react withoxygen at the same rate.

Answer 2

Answer:

Answer: For example, when copper is heated in air, it combines with oxygen to form copper(II) oxide, a black oxide. Similarly, aluminium forms aluminium oxide. We have observed in Activity 3.9 that all metals do not react withoxygen at the same rate.