1
WB JEE 2018
MCQ (Single Correct Answer)
+1
-0.33
Ferric ion forms a Prussian blue precipitate due to the formation of
A
$${K_4}[Fe{(CN)_6}]$$
B
$${K_3}[Fe{(CN)_6}]$$
C
$$Fe{(CNS)_3}$$
D
$$F{e_4}{[Fe{(CN)_6}]_3}$$
2
WB JEE 2017
MCQ (Single Correct Answer)
+1
-0.25
The number of unpaired electrons in $${[NiC{l_4}]^{2 - }}$$, $$Ni{(CO)_4}$$ and $${[Cu{(N{H_3})_4}]^{2 + }}$$ respectively are
A
2, 2, 1
B
2, 0, 1
C
0, 2, 1
D
2, 2, 0
WB JEE Subjects