Redox Reactions in Terms of Electron Transfer

The standard reduction potentials at 298 K for the following half reactions are given against each:
$\begin{array}{l}{\mathrm{Zn}}^{2+}\left(\mathrm{aq}\right)+2\mathrm{e}\stackrel{}{\rightleftharpoons }\mathrm{Zn}\left(\mathrm{s}\right) ;-0.762\\ {\mathrm{Cr}}^{3+}\left(\mathrm{aq}\right)+3\mathrm{e}\stackrel{}{\rightleftharpoons }\mathrm{Cr}\left(\mathrm{s}\right) ; -0.740\\ 2{\mathrm{H}}^{+}\left(\mathrm{aq}\right)+2\mathrm{e}\stackrel{}{\rightleftharpoons }{\mathrm{H}}_2\left(\mathrm{g}\right) ; 0.000\\ {\mathrm{Fe}}^{3+}\left(\mathrm{aq}\right)+\mathrm{e}\stackrel{}{\rightleftharpoons }{\mathrm{Fe}}^{2+}\left(\mathrm{aq}\right) ; 0.770\end{array}$
Which is the strongest reducing agent?

Which of the following reactions is possible at the anode?

Select the oxidising agent for the following reaction:

${\mathrm{H}}_2\mathrm{S}+{\mathrm{I}}_2\to 2\mathrm{HI}+\mathrm{S}$

What happened when ${\mathrm{SO}}_2$ gas dissolved in potassium iodate solution ?

Which of the following statements are true for the reaction of ${\mathrm{Fe}}_2{\mathrm{O}}_3$ with aluminium?

$1.$ It is known as the thermite reaction.

$2.$ The heat evolved is used for welding purposes.

$3.$ Aluminium metal acts as an oxidizing agent.

$4.$ Molten Fe and Al are formed at the end of the reaction.

Select the correct answer using the code given below.

Which of the following is not an example of redox reaction?

Which of the following will act as both oxidising and reducing agent?

Identify the substance oxidised, substance reduced, oxidising agent, and reducing agent.

${\mathrm{PCl}}_3\left(\mathrm{l}\right)+3{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)\to 3\mathrm{HCl}\left(\mathrm{aq}\right)+{\mathrm{H}}_3{\mathrm{PO}}_3\left(\mathrm{aq}\right)$

Which of the following is a redox reaction?

A transition metal exists in its highest oxidation state. It is expected to behave as

In the following equation ${\mathrm{MnO}}_2$ acts as 

${{\mathrm{MnO}}_4}^{-2}+2{\mathrm{H}}_2\mathrm{O}+2{\mathrm{e}}^{-}\to {\mathrm{MnO}}_2+4{\mathrm{OH}}^{-}$

What is the electrochemical series?

What is an electrochemical series? How does it help in calculating the e.m.f of a standard cell?

Among the following, identify the correct statement.

Write the reaction between the zinc rod and copper nitrate.

Hydrogen acts as reducing agent

Which is reduced in the following reaction

$\left(\mathrm{a}\right)2\mathrm{KI}\left(\mathrm{aq}\right)+\left(\mathrm{b}\right){\mathrm{Cl}}_2\left(\mathrm{aq}\right)\to 2\mathrm{KCl}+{\mathrm{I}}_2\left(\mathrm{aq}\right)$

Explain the observations made when cobalt rod is kept in nickel sulphate solution.