MCQ
Which of the following complexes is strongest reducing agent
- ✓$[Co(CN)_6]^{-4}$
- B$[Co(CN)_6]^{-3}$
- C$[Ag(CN)_2]^{-1}$
- D$[Co(CN)_4]^{-3}$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$(1)$ $2, 4-$Dinitrophenol
$(2)$ $4 -$ Nitrophenol
$(3)$ $2, 4, 5-$Trimethylphenol
$(4)$ Phenol
$(5)$ $3-$Chlorophenol
$(A)$ $\left[ Ni \left( H _{2} O \right)_{2}( en )_{2}\right]^{2+}$
$(B)$ $\left[ Ni \left( H _{2} O \right)_{4}(\text { en })\right]^{2+}$ and
$(C)$ $\left[ Ni ( en )_{3}\right]^{2+}$ is ...... .
Compound $(C)$ is