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प्रश्न
Divide the following reactions into oxidation and reduction half-reaction:
Zn + Cu2+ → Cu + Zn 2+
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उत्तर
Zn + Cu2+ → Cu + Zn 2+
Zn → Zn 2+ + 2 e- ---- Oxidation
Cu2+ + 2 e → Cu ---- Reduction
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संबंधित प्रश्न
The addition of hydrogen to a substance is called ______ whereas removal of hydrogen is called ______.
In the reaction represented by the equation:
\[\ce{MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2}\]
- name the substance oxidised.
- name the oxidising agent.
- name the substance reduced.
- name the reducing agent.
Explain the following in terms of gain or loss of oxygen with one example:
Reduction
TRUE \ FALSE
Hydrogen is a good oxidizing agent.
State whether the following conversion is oxidation or reduction:
Cu2+ + 2 e-→ Cu
Complete and balance the following equation:
\[\ce{K + H2O -> }\]________+ ________
State a reason why, when hydrogen is passed over heated copper oxide, the resultant product formed, differs in colour from the original reactant.
Select the correct answer from the symbol in the bracket.
The element, which like hydrogen is a strong reducing agent.
The process of reduction involves ____________.
Answer the questions based on the equation below:
\[\ce{CH3 - CH2 - OH ->[{[O]}][K2Cr2O7/H2SO4] CH3 - COOH}\]
- What type of reaction is it?
- What is the role of the chemical written on the arrow?
- Give one example of one such type of chemical as in answer (b).
