1.

Which of the following has minimum value of flocculating power [MP PET 1989, 90]

A.       \[P{{b}^{+2}}\]       
B.       \[P{{b}^{+4}}\]  
C.        \[S{{r}^{+2}}\]       
D.          \[N{{a}^{+}}\]
Answer» E.


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