Q: 49 (NDA-II/2008)

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Consider the following : The concentration of hydrogen ions in an aqueous solution is expressed by its
1. pH
2. pOH
3. pKa
4. pKw
Which of the above is/are correct?
question_subject: 
Science
question_year: 
2008
question_exam: 
NDA-II
stats: 
0,96,112,96,104,8,0