Qualitative Analysis - Result Question 19
19. The brown ring complex compound is formulated as $\left[Fe\left(H _2 O\right) _5(NO)^{+}\right] SO _4$. The oxidation state of iron is
(1987, 1M)
(a) $1$
(b) $2$
(c) $3$
(d) $0$
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Answer:
Correct Answer: 19. (a)
Solution:
The total positive valency is $+2$ (because the only anion is $SO _4^{2-}$ ). Therefore, oxidation state of $Fe$ must be $+1$ .
BETA
