The formal oxidation numbers of $Cr$ and $Cl$ in the ions $Cr_2O_7^{2-}$ and $ClO_3^{-}$ respectively are
- A$+6$ and $+5$
- B$+7$ and $+5$
- C$+6$ and $+7$
- D$+8$ and $+7$
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Similar Questions
$A$ compound contains atoms of $x, y$ and $z$ elements. Oxidation numbers of $x, y$ and $z$ are $+3, +5$ and $-2$ respectively. Identify the possible formula of this compound?
What is the oxidation number of $Cl$ in $HClO_4$ and $HClO_3$?
Easy
View SolutionIn which of the following compounds is the maximum oxidation state of the central atom present?
Difficult
View SolutionIn the chromyl chloride test,the oxidation state of $Cr$ changes from:
Medium
View SolutionWhat is the change in oxidation number of $Cr$ in the following redox reaction?
$3H_2O_2(aq) + Cr_2O_7^{2-}(aq) + 8H^+(aq) \rightarrow 3O_2(g) + 2Cr^{3+}(aq) + 7H_2O(l)$
$3H_2O_2(aq) + Cr_2O_7^{2-}(aq) + 8H^+(aq) \rightarrow 3O_2(g) + 2Cr^{3+}(aq) + 7H_2O(l)$
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