Write two uses of $KMnO_4$ and $K_2Cr_2O_7$.
(N/A) $KMnO_4$ (Potassium permanganate) is used as:
$1$. An oxidizing agent in laboratory and industrial processes.
$2$. $A$ disinfectant and germicide in water treatment.
$K_2Cr_2O_7$ (Potassium dichromate) is used as:
$1$. $A$ primary standard in volumetric analysis.
$2$. An oxidizing agent in the manufacture of azo compounds and in the leather industry for chrome tanning.
$1$. An oxidizing agent in laboratory and industrial processes.
$2$. $A$ disinfectant and germicide in water treatment.
$K_2Cr_2O_7$ (Potassium dichromate) is used as:
$1$. $A$ primary standard in volumetric analysis.
$2$. An oxidizing agent in the manufacture of azo compounds and in the leather industry for chrome tanning.
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View SolutionDetermine the correct $(T)$ and incorrect $(F)$ statements from the following:
$(a)$ The $E^o$ for $MnO_4^- + 8H^+ + 5e^- \to Mn^{2+} + 4H_2O$ is $-1.52 \ V$.
$(b)$ $MnO_4^-$ oxidizes $I^-$ to $I_2$.
$(c)$ The color of $CrO_4^{2-}$ is yellow in the presence of $H^+$.
$(d)$ The color of $CrO_4^{2-}$ is yellow in the presence of $OH^-$.
$(a)$ The $E^o$ for $MnO_4^- + 8H^+ + 5e^- \to Mn^{2+} + 4H_2O$ is $-1.52 \ V$.
$(b)$ $MnO_4^-$ oxidizes $I^-$ to $I_2$.
$(c)$ The color of $CrO_4^{2-}$ is yellow in the presence of $H^+$.
$(d)$ The color of $CrO_4^{2-}$ is yellow in the presence of $OH^-$.
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View SolutionPotassium dichromate when heated with concentrated sulphuric acid and a soluble chloride,gives brown-red vapours of:
DifficultJEE MAIN 2013
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