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JEE · NEET Previous Year Question

$The oxidation state of iron in K_{4} (Fe (CN)_{6}) is$

Topic: JEE PYQ

Answer: D. Full step-by-step solution below.

A $1$
B $4$
C $3$
D $2$

Correct answer: D

Solution

(d) : Oxidation state of Fe in K_{4} (Fe (CN)_{6}), + 4 + x + 6 (- 1) = 0 or, x - 2 = 0 \Rightarrow x = + 2

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