The orange colour of $K_2Cr_2O_7$ and purple colour of $KMnO_4$ is due to
- ACharge transfer transition in both.
- B$d \rightarrow d$ transition in $KMnO_4$ and charge transfer transitions in $K_2Cr_2O_7$.
- C$d \rightarrow d$ transition in $K_2Cr_2O_7$ and charge transfer transitions in $KMnO_4$.
- D$d \rightarrow d$ transition in both.
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Similar Questions
Given below are two statements:
Statement $I$: Fusion of $MnO_2$ with $KOH$ and an oxidising agent gives dark green $K_2MnO_4$.
Statement $II$: Manganate ion on electrolytic oxidation in alkaline medium gives permanganate ion.
In the light of the above statements,choose the correct answer from the options given below.
Statement $I$: Fusion of $MnO_2$ with $KOH$ and an oxidising agent gives dark green $K_2MnO_4$.
Statement $II$: Manganate ion on electrolytic oxidation in alkaline medium gives permanganate ion.
In the light of the above statements,choose the correct answer from the options given below.
Among the following,the compound that is both paramagnetic and coloured is
DifficultIIT 1997
View SolutionAssertion : Solution of $Na_2CrO_4$ in water is intensely coloured.
Reason : Oxidation state of $Cr$ in $Na_2CrO_4$ is $+VI$.
Reason : Oxidation state of $Cr$ in $Na_2CrO_4$ is $+VI$.
MediumAIIMS 2003
View SolutionBoiling $CuCl_2$ with $Cu$ in concentrated $HCl$ gives:
Medium
View SolutionThe fusion of manganese dioxide with $KOH$ in the presence of an oxidizing agent like $KNO_3$ yields a compound. Identify the compound and its color.
Easy
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