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Mainak Chakraborty Grade: Upto college level
        

How decreasing order of acidic strength possible for :


                        H3PO2 > H3PO3 > H3PO4 ??

7 years ago

Answers : (2)

Tapasranjan Das
19 Points
										

Hi mainak


if we look at the structure of those three we can easily find that basicity for


1.  H3PO2   is 1


2. H3PO3  is 2   and


3. H3PO4    is  3


and since basic character is increasing hence acidic character is decreasing.....for the structures go through any inorganic chemistry book

7 years ago
deepak askiitiansExpert-iit
19 Points
										

hi 


mainak


all oxoacids of phosphorous has typically two types of bonds i.e. P-H& P-OH


only P-OH is ionisable,H3PO2 has only one P-OH bond it will furnish all its hydrogen ions in a single step.


other are dibasic&tribasic  which do it in steps.


hence, Ka for h3po2  is highest &hence strongest acid.


if you like my answer ,please approve it.

7 years ago
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