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Chemistry CBSE Live product
Class 10 (2026-27)
Chemical reactions and equations
Redox reactions
7.
Redox in terms of electrons
Question:
3
m.
Select the right option to answer the question:
Analyse the given equation:
\(CuO + H_2 → Cu +H_2O\)
i.
Identify the correct change in oxidation states of copper and hydrogen.
No change in oxidation state
\(Cu\) is reduced from \(+2) to \(0\) and \(H\) is oxidised from \(0\) to \(+1\)
\(Cu\) is oxidised from \(+2) to \(0\) and \(H\) is reduced from \(0\) to \(+1\)
\(Cu\) is reduced from \(+1) to \(0\) and \(H\) is oxidised from \(0\) to \(+2\)
ii.
Identify the reducing agent.
\(H_2\)
\(Cu\)
\(CuO\)
\(H_2O\)
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