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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2014
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Q)

In acidic medium, $H_2O_2$ changes $Cr_2 O_7^{-2}$ to $CrO_5$ which has two $(- O - O - )$ bonds Oxidation state of $Cr$ in $CrO_5$ is :


( A ) $+6$
( B ) $+5$
( C ) $+3$
( D ) $-10$

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