Question
Question: he correct relationship between the pH of isomolar solutions of Na2O (pH1), Na2S (pH2) Na2Se(pH3) an...
he correct relationship between the pH of isomolar solutions of Na2O (pH1), Na2S (pH2) Na2Se(pH3) and Na2Te(pH4) is:
A
pH1> pH2> pH3> pH4
B
pH1< pH2< pH3< pH4
C
pH1< pH2< pH3 = pH4
D
pH1> pH2 = pH3> pH4
Answer
pH1> pH2> pH3> pH4
Explanation
Solution
Order of basic strength O2– > S2– > Se2– > Te2–