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Q.A compound gives a positive Lassaigne's test for nitrogen and sulfur. When the extract is treated with FeCl3FeCl_3, a blood red color is obtained. This is due to:

a
Fe(SCN)3Fe(SCN)_3
b
Fe4[Fe(CN)6]3Fe_4[Fe(CN)_6]_3
c
Na4[Fe(CN)5NOS]Na_4[Fe(CN)_5NOS]
d
Fe(OH)3Fe(OH)_3

Correct Answer: Option A

The correct solution involves applying the fundamental concept to derive the final value step by step...

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