AP EAPCET 2025 - 27th May Morning Shift | Redox Reactions Question 3 | Chemistry

$\mathrm{KMnO}_4$ oxidises hydrogen sulphide in acidic medium, The number of moles of $\mathrm{KMnO}_4$ which react with one mole of hydrogen sulphide is

0.4

2.5

AP EAPCET 2025 - 23rd May Evening Shift

MCQ (Single Correct Answer)

-0

$\mathrm{H}_2 \mathrm{O}_2$ reduces $\mathrm{KMnO}_4$ in acidic medium to ' $x$ ' and in basic medium to ' $y$ '. What are $x$ and $y$ ?

$x=\mathrm{MnO}_2, y=\mathrm{Mn}^{2+}$

$x=\mathrm{Mn}^{2+}, y=\mathrm{MnO}_2$

$x=\mathrm{MnO}_4^{2-}, y=\mathrm{Mn}^{2+}$

$x=\mathrm{MnO}_2, y=\mathrm{MnO}_4^{2-}$

AP EAPCET 2025 - 23rd May Morning Shift

MCQ (Single Correct Answer)

-0

Which one of the following reactions is not feasible?

$\mathrm{Cl}_2(g)+2 \mathrm{KBr}(\mathrm{aq}) \longrightarrow 2 \mathrm{KCl}(g)+\mathrm{Br}_2(l)$

$\mathrm{Cl}_2(\mathrm{~g})+2 \mathrm{KI}(\mathrm{aq}) \longrightarrow 2 \mathrm{KCl}(\mathrm{aq})+\mathrm{I}_2(\mathrm{~s})$

$\mathrm{Br}_2(l)+2 \mathrm{KI}(\mathrm{aq}) \longrightarrow 2 \mathrm{KBr}(\mathrm{aq})+\mathrm{I}_2(\mathrm{~s})$

$\mathrm{I}_2(\mathrm{~s})+2 \mathrm{KBr}(\mathrm{aq}) \longrightarrow 2 \mathrm{KI}(\mathrm{aq})+\mathrm{Br}_2(\mathrm{l})$

AP EAPCET 2025 - 23rd May Morning Shift

MCQ (Single Correct Answer)

-0

Which one of the following acts as autocatalyst during titration of $\mathrm{KMnO}_4$ and oxalic acid in presence of dilute $\mathrm{H}_2 \mathrm{SO}_4$ ?

$\mathrm{H}_2 \mathrm{SO}_4$

$\mathrm{KMnO}_4$

$\mathrm{H}_2 \mathrm{C}_2 \mathrm{O}_4$

$\mathrm{MnSO}_4$

PREVIOUS NEXT

AP EAPCET Subjects

Browse all chapters by subject