Advertisements
Advertisements
Question
Explain the term redox reaction with an example involving the reaction of hydrogen sulphide with chlorine.
Advertisements
Solution
Redox Reaction: “The reaction in which oxidation and reduction take place simultaneously is called Redox Reaction.”
Removal of hydrogen is oxidation. Here `"H"_2"S"` is oxidised to sulphur whereas the addition of hydrogen is reduction.
Here chlorine is being reduced to hydrogen chloride.
APPEARS IN
RELATED QUESTIONS
In the reaction represented by the equation:
MnO2 + 4HCl → MnCl2 + 2H2O + Cl2
(i) name the substance oxidised.
(ii) name the oxidising agent.
(iii) name the substance reduced.
(iv) name the reducing agent.
You are given the following chemical equation:
Mg (s) + CuO (s) → MgO (s) + Cu (s)
This equation represents:
(a) decomposition reaction as well as displacement reaction
(b) combination reaction as well as double displacement reaction
(c) redox reaction as well as displacement reaction
(d) double displacement reaction as well as redox reaction
Define reduction.
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+
A metal oxide that is reduced by hydrogen is
Choose terms from the options given in brackets to complete this sentence.
When CuO reacts with hydrogen,………………… is reduced and ……………….is oxidized to ………………….
(CuO, H2, Cu, H2O)
______ is a metal that has a high resistance to corrosion.
Find the oxidation number of the element in the following compound.
N in NH3
Find the oxidation number of the element in the following compound.
A1 in AlCl3
