1. Tardigrade
  2. Question
  3. Chemistry
  4. When chlorine reacts with dil. NaOH under cold conditions, the oxidation state of chlorine changes from zero to

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. When chlorine reacts with dil. $NaOH$ under cold conditions, the oxidation state of chlorine changes from zero to

J & K CETJ & K CET 2008The p-Block Elements - Part2

Solution:

When chlorine reacts with dilute and cold $NaOH$, sodium chloride and sodium hypochloride are formed.
$2 NaOH$ (cold) $+ Cl _{2} \rightarrow NaCl + \underset{\text{soldium hypochloride}}{NaClO} + H _{2} O$
Let oxidation state of $Cl$ in $NaCl$ is $x$.
$NaCl +1 + x =0 x=-1$
Let oxidation state of $Cl$ in
$NaClO$ is $x . NaClO$
$ +1 + x -2 =0$
$x -1=0$
$x = + 1$
$\therefore $ Oxidation states of chlorine changes from
$0$ to $-1$ and $+1 .$