Advertisements
Advertisements
प्रश्न
Give the balanced equation for the reaction between chlorine with cold NaOH and hot NaOH.
उत्तर
1. Reaction between chlorine with cold NaOH:
\[\ce{Cl2 + H2O -> HCl + HOCl}\]
\[\ce{HCl + NaOH -> NaCl + H2O}\]
\[\ce{HOCl + NaOH -> NaOCl + H2O}\]
Overall reaction:
\[\ce{Cl2 + \underset{\text{(Cold)}}{2NaOH} -> \underset{\text{(Sodium hypochlorite)}}{NaOCl} + \underset{\text{(Sodium chloride)}}{NaCl} + H2O}\]
Chlorine reacts with cold NaOH to give sodium chloride and sodium hypochlorite.
2. Reaction between chlorine with hot NaOH:
\[\ce{Cl2 + H2O -> HCl + HOCl}\]
\[\ce{HCl + NaOH -> NaCl + H2O}\]
\[\ce{HOCl + NaOH -> NaOCl + H2O}\]
\[\ce{3NaOCl -> NaClO3 + 2NaCl}\]
Overall reaction:
\[\ce{3Cl2 + \underset{\text{(Hot)}}{6NaOH} -> \underset{\text{(Sodium chlorate)}}{NaClO3} + \underset{\text{(Sodium chloride)}}{5NaCl} + 3H2O}\]
Chlorine reacts with hot NaOH to give sodium chlorate and sodium chloride.
APPEARS IN
संबंधित प्रश्न
The correct order of the thermal stability of hydrogen halide is ____________.
Which of the following is the strongest acid among all?
Which one of the following orders is correct for the bond dissociation enthalpy of halogen molecules?
What are interhalogen compounds? Give examples.
Why fluorine is more reactive than other halogens?
Give the uses of helium.
What is the hybridisation of iodine in IF7? Give its structure.
How will you prepare chlorine in the laboratory?
Suggest a reason why HF is a weak acid, whereas binary acids of all other halogens are strong acids.
Deduce the oxidation number of oxygen in hypofluorous acid – HOF.
