Types of Redox Reactions

Oxidation-reduction reactions are complementary. Explain.

Consider this reaction:

$3\mathrm{Au}\left(\mathrm{s}\right)+8{\mathrm{H}}^{+}+2{{\mathrm{NO}}_3}^{-}\to 3{\mathrm{Au}}^{2+}\left(\mathrm{aq}\right)+2\mathrm{NO}\left(\mathrm{g}\right)+4{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)$

Acidic solution of ${\mathrm{KMnO}}_4$ is used as an oxidising agent. If you are provided with three solutions seperately 
which are(oxalic acid), (ferrous sulphate) and (ferric sulphate), then ${\mathrm{KMnO}}_4$ can oxidise.

What is the difference between the decomposition redox reaction and disproportionation redox reaction ?

Identify the pair of reactions undergoing disproportionation from the following.

Among ${\mathrm{P}}_4, {\mathrm{S}}_8$ and ${\mathrm{N}}_2$, the elements which undergo disproportionation when heated with $\mathrm{NaOH}$ solution

Match the following.

The correct answer is

What happens when ${\mathrm{Cl}}_2$ is passed through a hot concentrated solution of a base like $\mathrm{Ba}{\left(\mathrm{OH}\right)}_2$?

An inorganic compound (A) i.e, potassium chlorate when heated alone, it produces compounds (C) and (D). Identify compounds (C) and (D) and explain the reactions.

The emf of a galvanic cell, with electrode potentials of $\mathrm{Zn}=0.76 \mathrm{V}$ is,

In the following reaction, the products are ${\mathrm{P}}_4+3\mathrm{NaOH}+3{\mathrm{H}}_2\mathrm{O}⟶?$

${\mathrm{H}}_2{\mathrm{O}}_2⟶{\mathrm{H}}_2\mathrm{O}+{\mathrm{O}}_2$
This represents

Which of the following can undergo a chemical reaction?

Which of the following displacement reactions cannot occur?

The burning of magnesium ribbon in the air is an example of which type of reaction. Explain.

Many metals, including those which do not react with cold water, are capable of displacing hydrogen from _____.

How will you define the combination reactions?

$3 \mathrm{Mg}\left(\mathrm{s}\right) + {\mathrm{N}}_2\left(\mathrm{g}\right)\to {\mathrm{Mg}}_3{\mathrm{N}}_2\left(\mathrm{s}\right)$

The above reaction is a

Tell about the following reaction,

$\mathrm{Zn}\left(\mathrm{s}\right) +{\mathrm{CuSO}}_4 \left(\mathrm{aq}\right)\to {\mathrm{ZnSO}}_4\left(\mathrm{aq}\right)+\mathrm{Cu}\left(\mathrm{s}\right)$