Among the following, which causes the greatest
change in pH on addition to 50 ml of 0.2 M oxalic
acid solution?
(1) Addition of 25 ml of 0.02 M oxalic acid 0.00
(2) Addition of 25 ml of 1 M NaOH solution
(3) Addition of 2 ml of 0.02 M NH OH solution
(4) Addition of 50 ml of 0.2 M acetic acid solution
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Explanation: Heya!!! I think the answer is 2.
The most simplest and easy way (coz as I see this is an mcq and u need to do it very quickly) is that apply this simple formula NV=N1V1-N2V2
this is because if u see the option both acid and base react if thathappens by substituting in this equation u get ur answer.
Calculation part to u N=0.067 which will be maximum in all four
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