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why boric acid isnt an arrhenius acid inspite of having H coneected with oxygen

 

Asked by arup.isro 23rd October 2018, 4:37 PM
Answered by Expert
Answer:
Boric acid is a weak monobasic lewis acid (accepts electrons) of boron.
The chemical formula of boric is H3BO3 also written as B(OH)3.
This weak boric acid accepts hydroxyl ion from the water, It does not dissociate to give hydrogen ion or hydronium ion i.e. H3O+
The reaction takes place as:
 
straight B left parenthesis OH right parenthesis subscript 3 space space plus space space straight H subscript 2 straight O space rightwards harpoon over leftwards harpoon from blank to blank of space left square bracket straight B left parenthesis OH right parenthesis subscript 4 right square bracket to the power of minus space space plus space space straight H subscript 3 straight O to the power of plus
Hence it is not Arrhenius acid.
Answered by Expert 23rd October 2018, 7:24 PM
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