Assign $A$,$B$,$C$,$D$ from the given type of reaction.
$Na_2CrO_4 + HCl \longrightarrow H_2Cr_2O_7 + NaCl$
$Na_2CrO_4 + HCl \longrightarrow H_2Cr_2O_7 + NaCl$
- A$A$. for coloured ppt./Black ppt.
- B$B$. for coloured solution.
- C$C$. for clear/colourless solution
- D$D$. for white ppt.
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Which of the following reactions of $KMnO_4$ occurs in acidic medium?
Assign $A, B, C, D$ from the given type of reaction.
$Fe^{2+}(aq.) + Cr_2O_7^{2-}(aq.) + H^+(aq.) \longrightarrow Fe^{3+}(aq.) + Cr^{3+}(aq.) + H_2O(l)$
$Fe^{2+}(aq.) + Cr_2O_7^{2-}(aq.) + H^+(aq.) \longrightarrow Fe^{3+}(aq.) + Cr^{3+}(aq.) + H_2O(l)$
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View SolutionThe dark purple colour of $KMnO_4$ disappears in the titration with oxalic acid in acidic medium. The overall change in the oxidation number of manganese in the reaction is.
The equivalent weight of $Na_2S_2O_3$ (Gram molecular weight $= M$) in the given reaction is $I_2 + 2Na_2S_2O_3 \rightarrow 2NaI + Na_2S_4O_6$.
MediumWBJEE 2024
View SolutionWhat will happen when copper sulphate solution is stored in aluminium vessels?
Easy
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