MCQ
Which of the following complex represent maximum stability ?
- ✓$[Co(CN)_6]^{3-}$
- B$[Co(H_2O)_6]^{3+}$
- C$[Co(CN)_6]^{4-}$
- D$[Co(C_2O_4)_3]^{3-}$
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$B$ reacts with Hydroxyl amine but does not give Tollen's test. Identify $A$ and $B$
${\left[ {Fe{{\left( {CN} \right)}_6}} \right]^{ - 4}}\,\xrightarrow{{MnO_4^ - /{H^ + }}}F{e^{ + 3}} + C{O_2} + NO_3^ - $