Embibe Experts Solutions for Chapter: Redox Reactions, Exercise 1: Exercise 1

In the reaction:
$3{\mathrm{Br}}_2+6{\mathrm{CO}}_3^{2-}+2{\mathrm{H}}_2\mathrm{O}⟶5{\mathrm{Br}}^{-}+{\mathrm{BrO}}_3^{-}+6{\mathrm{HCO}}_3^{-}$

Indicate in which of the following processes the nitrogen is reduced:

Consider the reaction
$2{\mathrm{MnO}}_4^{-}+10{\mathrm{Cl}}^{-}+16{\mathrm{H}}^{+}⟶2{\mathrm{Mn}}^{2+}+5{\mathrm{Cl}}_2+8{\mathrm{H}}_2\mathrm{O}$ and select the correct statements:

What will be the value of $\mathrm{x}, \mathrm{y}$ and $\mathrm{z}$ in the following equation?

${\mathrm{x}}_2+{\mathrm{yOH}}^{-}\to {\mathrm{IO}}_3^{-}+{\mathrm{zI}}^{-}+3{\mathrm{H}}_2\mathrm{O}$

The oxidation number of oxygen in ${\mathrm{Na}}_2{\mathrm{O}}_2$ is _____ .

A reducing agent is a substance:

Consider the following reaction: $3{\mathrm{Br}}_2+6{\mathrm{CO}}_3^{2-}+3{\mathrm{H}}_2\mathrm{O}⟶5{\mathrm{Br}}^{-}+{\mathrm{BrO}}_3^{-}+6{\mathrm{HCO}}_3^{-}$. Which of the following statements is true regarding this reaction?

Which reaction does not represent auto redox or disproportionation reaction?