Chemistry - Redox Reactions Question with Solution | TestHub

ChemistryRedox ReactionsMiscellaneous/MixedEasy2 minPYQ_2020

ChemistryEasysingle choice

The oxidation states of Cr in $[C r (H_{2} O)_{6}] C l_{3}, [C r (C_{6} H_{6})_{2}]$ and $K_{2} [C r (C N)_{2} (O)_{2} (O_{2}) (N H_{3})]$ respectively are

Options:

Answer:

Solution:

$[C r (H_{2} O)_{6}] C l_{3} : x + 6 \times 0 + 3 \times - 1 = 0$

$x = + 3$

$[C r (C_{6} H_{6})_{2}] : x + 2 \times 0$

$x = 0$

$K_{2} [C r (C N)_{2} {(O)}_{2} (O_{2}) (N H_{3})]$

$2 \times (+ 1) + x + 2 \times (- 1) + 2 \times (- 2) + 2 \times (- 1) + 0 = 0$

$2 + x - 2 - 4 - 2 = 0$

$x = + 6$

Stream:NTA_ABHYASSubject:ChemistryTopic:Redox ReactionsSubtopic:Miscellaneous/Mixed

⏱ 2mℹ️ Source: PYQ_2020

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