Advertisements
Advertisements
Question
Explain the following in term of gain or loss of oxygen with two examples.
Reduction
Advertisements
Solution
Reduction is a reaction which involves loss or removal of oxygen. For example,
\[\ce{CuO + H2 ->[Heat] Cu + H2O}\]
\[\ce{ZnO + C -> Zn + CO}\]
APPEARS IN
RELATED QUESTIONS
Corrosion can be prevented by using ……………. solution.
Define corrosion.
What is meant by rust?
What are anti-oxidants?
When SO2 gas is passed through saturated solution of H2S, the following reaction occurs:
SO2 + 2H2S → 2H2O + 3S
In this reaction, which substance is oxidised and which one is reduced?
Give an example of an oxidation reaction.
Hydrogen burns with a ______ flame and ______ sound is heard.
Define an oxidation reaction.
Identify the substances that are oxidised and the substances that are reduced in the following reaction.
\[\ce{CuO_{(s)} + H2_{(g)} -> Cu_{(s)} + H2O_{(l)}}\]
Identify from the reaction the reactants that undergo oxidation and reduction.
2Mg + O2 → 2MgO
State, giving reason, whether the substances printed in bold letters have been oxidized or reduced.
Mg + 2HCl → MgCl2 + H2
Divide the following reactions into oxidation and reduction half-reaction:
Zn + Cu2+ → Cu + Zn 2+
Divide the following reactions into oxidation and reduction half-reaction:
Cl2 + 2Br- → Br2 + 2Cl-
Identify the reducing agent in the following reactions -
`"H"_2"O" + "F"_2 -> "HF" + "HOF"`
Identify the reducing agent in the following reactions
`"Fe"_2"O"_3 + 3"CO" -> 2"Fe" + 3"CO"_2`
Identify the oxidising agent (oxidant) in the following reactions
`"CuSO"_4 + "Zn" -> "Cu" + "ZnSO"_4`
Write a short note on oxidizing and reducing agents.
The tarnishing of metals is due to the formation of ______.
Choose the odd one out and write the reason:
Identify the type of chemical reaction given below:
\[\ce{2Mg + O2 -> 2MgO}\]
