MCQ
Lysine is least soluble in water in the $pH$ range
- A$3$ to $4$
- B$5$ to $6$
- ✓$6$ to $7$
- D$8$ to $9$
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$(a) P_2O_7^{4-}$ $(b) S_2O_5^{2-}$
$(c) S_2O_7^{2-}$ $(d) Cl_2O_7$
$(e) Mn_2O_7$ $(f) S_2O_8^{2-}$