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Arrange the following in increasing order of pH.

KNO3 (aq), CH3COONa (aq), NH4Cl (aq), C6H5COONH4 (aq)

0 2 Views | Posted 4 months ago
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    Answered by

    Vishal Baghel | Contributor-Level 10

    4 months ago

    This is a Short Answer Type Questions as classified in NCERT Exemplar

    Ans: Correct order of pH is -

    NH4Cl  C6H5COONH4  KNO3  CH3COONa

    Salts of strong acid and strong base do not hydrolyse and form neutral solution thus, pH will be nearly 7 of KNO3?  

    In sodium acetate, acetic acid remains unionised this results in increase in OH- concentration and pH will be more than 7. 

    NH4Cl formed from weak base,  NH4OH and strong acid,  HCl, in water dissociates completely, aq. ammonium ions undergo hydrolysis with water to form NH4OHand H+ ions resulting in less pH value.

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