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ICSE Class 8 Answered

how does hydrogen react with the following? write the equation for each and give the experimental condition. a) sodium b) sulphur. c) chlorine  
Asked by nathsantanukumar | 23 Jun, 2018, 08:37: PM
answered-by-expert Expert Answer

Sodium (Na)

 Hydrogen reacts with heated sodium metals to form metal hydrides.

 

         2Na    +    H2    →       2NaH

                                      Sodium hydride

Sulphur

When hydrogen gas is passed through boiling sulphur, hydrogen sulphide gas (H2S) is formed. H2S gas smells like rotten eggs.

              H2      +   S   →      H2S

           Boiling                  Hydrogen

           sulphur                  sulphide

Chlorine gas

Hydrogen reacts with chlorine to form hydrogen chloride.

This reaction is explosive if carried out in diffused sunlight as it is spontaneous and exothermic. 

          H2       +        Cl2        →         2HCl ↑

   Hydrogen     Chlorine    Hydrogen chloride
Answered by Ramandeep | 25 Jun, 2018, 11:07: AM

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