Embibe Experts Solutions for Exercise 2: Assignment

Which of the given reaction is an example of disproportionation reaction?

Consider the given reaction

$\mathrm{Zn}+{\mathrm{NO}}_3^{-}\to {\mathrm{Zn}}^{2+}+{\mathrm{NH}}_4^{+}$ (Basic medium)

The balanced equation for the given reaction is

The oxidant in the given reaction is

$2{\mathrm{FeCl}}_3\left(\mathrm{aq}\right)+{\mathrm{H}}_2\left(\mathrm{g}\right)\to 2{\mathrm{FeCl}}_2\left(\mathrm{aq}\right)+2\mathrm{HCl}\left(\mathrm{aq}\right)$

In which of the following compounds, the underlined element can undergo disproportionation reaction?

How many moles of ${\mathrm{KMnO}}_4$ are reacted with one mole of ferrous oxalate in acidic medium?

The number of electrons lost or gained during the change, $3\mathrm{Fe}+4{\mathrm{H}}_2\mathrm{O}\to {\mathrm{Fe}}_3{\mathrm{O}}_4+4{\mathrm{H}}_2$ is

Oxidation number of $\mathrm{S}$ in ${\mathrm{H}}_2{\mathrm{S}}_2{\mathrm{O}}_8$ is

When fluorine reacts with ice, following chemical reaction takes place

${\mathrm{H}}_2\mathrm{O}\left(\mathrm{s}\right)+{\mathrm{F}}_2\left(\mathrm{g}\right)\to \mathrm{HF}\left(\mathrm{g}\right)+\mathrm{HOF}\left(\mathrm{g}\right)$

The oxidation state of fluorine changes from