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Chemistry
The brown ring test for NO3 - is due to the formation of complex ion with a formula
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Q. The brown ring test for $NO_3^ -$ is due to the formation of complex ion with a formula
The d-and f-Block Elements
A
$[Fe(H_2O)_5NO]^{2+}$
69%
B
$[Fe(H_2O)_5NO]^+$
13%
C
$Fe(OH)_2$
9%
D
$[Fe(H_2O)_5NO_3]^-$
9%
Solution:
In brown ring test, a brown coloured complex ion is formed which is $[Fe(H_2O)_5NO]^{2+}$.