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Chemistry - Complete d-block Question with Solution | TestHub

ChemistryComplete d-blockd-blockMedium2 minPYQ_2014

ChemistryMediumsingle choice

In acidic medium, $H_{2} O_{2}$ changes $C r_{2} O_{7}^{- 2}$ to $C r O_{5}$ which has two $(- O - O -)$ bonds Oxidation state of $C r$ in $C r O_{5}$ is:NEET 2014

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Answer:

Solution:

Chromium forms six bonds with the oxygen atoms and oxygen is more electronegative than the chromium. Due to this chromium shows oxidation state in ${CrO}_{5}$ is $+ 6$ .

Stream:NEETSubject:ChemistryTopic:Complete d-blockSubtopic:d-block

⏱ 2mℹ️ Source: PYQ_2014

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