Which of the following shows a metal being ox | vedclass

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(D) Oxidation is defined as the loss of electrons or an increase in the oxidation state of an element.In option $(A)$,$Na$ (oxidation state $0$) is co

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Both $(A)$ and $(B)$

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(D) Oxidation is defined as the loss of electrons or an increase in the oxidation state of an element.In option $(A)$,$Na$ (oxidation state $0$) is converted to $NaOH$ where $Na$ has an oxidation state of $+1$. Thus,$Na$ is oxidised.In option $(B)$,$Cu$ (oxidation state $0$) loses $2$ electrons to form $Cu^{2+}$ (oxidation state $+2$). Thus,$Cu$ is oxidised.In option $(C)$,$Cu^{2+}$ gains electrons to form $Cu$,which is a reduction process.Therefore,both $(A)$ and $(B)$ represent the oxidation of a metal.

Which of the following shows a metal being oxidised?

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