Q. 71

How will you concentrate H2O2? Show differences between structures of H2O2 and H2O by drawing their spatial structures. Also mention three important uses of H2O2.

Answer :

H2O2 is concentrated by distillation under reduced pressure. It can be further concentrated by careful distillation under low pressure.


H2O2 has a non polar structure whereas H2O has a polar structure which can be drawn as given below-


h2o2.png


2019-11-13.png


3 important uses of H2O are-


1. It is often used in bleach for hair and it is also used as an antiseptic and is old in market as perhydrol.


2. It is used to manufacture chemicals like sodium perborate and per-carbonate, which are present in high quality detergents.


3. It is used in industry as a bleaching agent for textiles, paper pulp, leather, etc.


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