MCQ
Which of the following is correctly matched?
- A$[Cu(NH_3)_4]^{2+}$ Diamagnetic
- B$[Ni(CN)_4]^{2-}$ Para magnetic
- C$[MnCl_4]^{2-}$ Diamagnetic
- ✓$[Fe(CN)_6]^{4-}$ Diamagnetic
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$(1)$ It is reduced to methyl phenyl carbinol by sodium and ethanol
$(2)$ It is oxidised to benzoic acid with acidified $KMn{O_4}$
$(3)$ It does not undergo iodoform electrophilic substitution like nitration at meta position
$(4)$ It does not undergo iodoform reaction with iodine and alkali

$(a)$ saline hydrides produce $H_2$ gas when reacted with $H_2O.$
$(b)$ reaction of $LiAH_4$ with $BF_3$ leads to $B_2H_6.$
$(c)$ $PH_3$ and $CH_4$ are electron - rich and electron-precise hydrides, respectively.
$(d)$ $HF$ and $CH_4$ are called as molecular hydrides.