Advertisements
Advertisements
Question
Give two tests for a reducing agent.
Solution
Test For A Reducing Agent :
- When the reducing agent is warmed with `"HNO"_3`, BROWN FUMES of `"NO"_2` are given out.
- Reducing agent decolourises the pink colour of `("KMnO"_4)` dil. potassium permanganate solution.
APPEARS IN
RELATED QUESTIONS
Electrolysis is a redox process. Explain.
Identify from the reaction the reactants that undergo oxidation and reduction.
2Mg + O2 → 2MgO
Explain the following in term of gain or loss of oxygen with two examples.
Reduction
State, giving reason, whether the substances printed in bold letters have been oxidized or reduced.
H2S + Cl2→ 2HCl + S
Name:
a substance that oxidizes concentrated HCl to chlorine.
State what is oxidising agent. Give an example of oxidising agent in the gaseous, liquid, and solid form.
\[\ce{MnO2 + 4HCl -> + 2H2O + Cl2}\]
Identify the substance oxidized in the above equation.
During the reaction of some metals with dilute hydrochloric acid, following observations are made.
The reaction of sodium metal is found to be highly explosive
Explain this observation giving suitable reason.
You are provided with two containers made up of copper and aluminium. You are also provided with solutions of dilute HCl, dilute HNO3, ZnCl2 and water. In which of the above containers, can these solutions be kept?
Find the oxidation number of the element in the following compound.
N in NH3
