Balancing of Redox Reactions
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CHXI08:REDOX REACTIONS

315103 What is the value of ' \(\mathrm{x}\) ' in order to balance the following redox reaction by ion electron method? \(\mathrm{\mathrm{xH}_{2} \mathrm{O}_{2}+\mathrm{ClO}_{4}^{-} \rightarrow \mathrm{xO}_{2}+\mathrm{ClO}_{2}^{-}+2 \mathrm{H}_{2} \mathrm{O}}\)

1 3
2 4
3 1
4 2
MHTCET - 2021
CHXI08:REDOX REACTIONS

315104 In the redox reaction -
\(\rm{10 \mathrm{FeC}_{2} \mathrm{O}_{4}+x \mathrm{KMnO}_{4}+24 \mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow}\)
\(\mathrm{5 \mathrm{Fe}_{2}\left(\mathrm{SO}_{4}\right)_{3}+20 \mathrm{CO}_{2}+y \mathrm{MnSO}_{4}+3 \mathrm{~K}_{2} \mathrm{SO}_{4}+24 \mathrm{H}_{2} \mathrm{O}}\)
The values of \(\mathrm{x}\) and \(\mathrm{y}\) are respectively -

1 6, 3
2 3, 6
3 3, 3
4 6, 6
CHXI08:REDOX REACTIONS

315105 Which of the following is correctly balanced half reaction?

1 \(\mathrm{\mathrm{AsO}_{3}^{-3}+\mathrm{H}_{2} \mathrm{O} \rightarrow \mathrm{AsO}_{4}^{3-}+2 \mathrm{H}^{+}-2 e^{-}}\)
2 \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}+2 e^{-} \rightarrow \mathrm{O}_{2}+2 \mathrm{H}^{+}}\)
3 \(\mathrm{\mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}+14 \mathrm{H}^{+} \rightarrow 2 \mathrm{Cr}^{+3}+7 \mathrm{H}_{2} \mathrm{O}-6 e^{-}}\)
4 \(\mathrm{\mathrm{IO}_{3}^{-}+6 \mathrm{H}^{+} \rightarrow \mathrm{I}_{2}+3 \mathrm{H}_{2} \mathrm{O}+5 e^{-}}\)
CHXI08:REDOX REACTIONS

315108 Which of the following ion is spectator ion in the reaction given below?
\(\rm{\mathrm{Zn}+2 \mathrm{H}^{+}+2 \mathrm{Cl}^{-} \longrightarrow \mathrm{Zn}^{2+}+2 \mathrm{Cl}^{-}+\mathrm{H}_{2}}\)

1 \(\mathrm{\mathrm{Zn}^{2+}}\)
2 \(\mathrm{H^{+}}\)
3 \(\mathrm{\mathrm{Cl}^{-}}\)
4 None of these
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CHXI08:REDOX REACTIONS

315103 What is the value of ' \(\mathrm{x}\) ' in order to balance the following redox reaction by ion electron method? \(\mathrm{\mathrm{xH}_{2} \mathrm{O}_{2}+\mathrm{ClO}_{4}^{-} \rightarrow \mathrm{xO}_{2}+\mathrm{ClO}_{2}^{-}+2 \mathrm{H}_{2} \mathrm{O}}\)

1 3
2 4
3 1
4 2
MHTCET - 2021
CHXI08:REDOX REACTIONS

315104 In the redox reaction -
\(\rm{10 \mathrm{FeC}_{2} \mathrm{O}_{4}+x \mathrm{KMnO}_{4}+24 \mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow}\)
\(\mathrm{5 \mathrm{Fe}_{2}\left(\mathrm{SO}_{4}\right)_{3}+20 \mathrm{CO}_{2}+y \mathrm{MnSO}_{4}+3 \mathrm{~K}_{2} \mathrm{SO}_{4}+24 \mathrm{H}_{2} \mathrm{O}}\)
The values of \(\mathrm{x}\) and \(\mathrm{y}\) are respectively -

1 6, 3
2 3, 6
3 3, 3
4 6, 6
CHXI08:REDOX REACTIONS

315105 Which of the following is correctly balanced half reaction?

1 \(\mathrm{\mathrm{AsO}_{3}^{-3}+\mathrm{H}_{2} \mathrm{O} \rightarrow \mathrm{AsO}_{4}^{3-}+2 \mathrm{H}^{+}-2 e^{-}}\)
2 \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}+2 e^{-} \rightarrow \mathrm{O}_{2}+2 \mathrm{H}^{+}}\)
3 \(\mathrm{\mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}+14 \mathrm{H}^{+} \rightarrow 2 \mathrm{Cr}^{+3}+7 \mathrm{H}_{2} \mathrm{O}-6 e^{-}}\)
4 \(\mathrm{\mathrm{IO}_{3}^{-}+6 \mathrm{H}^{+} \rightarrow \mathrm{I}_{2}+3 \mathrm{H}_{2} \mathrm{O}+5 e^{-}}\)
CHXI08:REDOX REACTIONS

315108 Which of the following ion is spectator ion in the reaction given below?
\(\rm{\mathrm{Zn}+2 \mathrm{H}^{+}+2 \mathrm{Cl}^{-} \longrightarrow \mathrm{Zn}^{2+}+2 \mathrm{Cl}^{-}+\mathrm{H}_{2}}\)

1 \(\mathrm{\mathrm{Zn}^{2+}}\)
2 \(\mathrm{H^{+}}\)
3 \(\mathrm{\mathrm{Cl}^{-}}\)
4 None of these
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CHXI08:REDOX REACTIONS

315103 What is the value of ' \(\mathrm{x}\) ' in order to balance the following redox reaction by ion electron method? \(\mathrm{\mathrm{xH}_{2} \mathrm{O}_{2}+\mathrm{ClO}_{4}^{-} \rightarrow \mathrm{xO}_{2}+\mathrm{ClO}_{2}^{-}+2 \mathrm{H}_{2} \mathrm{O}}\)

1 3
2 4
3 1
4 2
MHTCET - 2021
CHXI08:REDOX REACTIONS

315104 In the redox reaction -
\(\rm{10 \mathrm{FeC}_{2} \mathrm{O}_{4}+x \mathrm{KMnO}_{4}+24 \mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow}\)
\(\mathrm{5 \mathrm{Fe}_{2}\left(\mathrm{SO}_{4}\right)_{3}+20 \mathrm{CO}_{2}+y \mathrm{MnSO}_{4}+3 \mathrm{~K}_{2} \mathrm{SO}_{4}+24 \mathrm{H}_{2} \mathrm{O}}\)
The values of \(\mathrm{x}\) and \(\mathrm{y}\) are respectively -

1 6, 3
2 3, 6
3 3, 3
4 6, 6
CHXI08:REDOX REACTIONS

315105 Which of the following is correctly balanced half reaction?

1 \(\mathrm{\mathrm{AsO}_{3}^{-3}+\mathrm{H}_{2} \mathrm{O} \rightarrow \mathrm{AsO}_{4}^{3-}+2 \mathrm{H}^{+}-2 e^{-}}\)
2 \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}+2 e^{-} \rightarrow \mathrm{O}_{2}+2 \mathrm{H}^{+}}\)
3 \(\mathrm{\mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}+14 \mathrm{H}^{+} \rightarrow 2 \mathrm{Cr}^{+3}+7 \mathrm{H}_{2} \mathrm{O}-6 e^{-}}\)
4 \(\mathrm{\mathrm{IO}_{3}^{-}+6 \mathrm{H}^{+} \rightarrow \mathrm{I}_{2}+3 \mathrm{H}_{2} \mathrm{O}+5 e^{-}}\)
CHXI08:REDOX REACTIONS

315108 Which of the following ion is spectator ion in the reaction given below?
\(\rm{\mathrm{Zn}+2 \mathrm{H}^{+}+2 \mathrm{Cl}^{-} \longrightarrow \mathrm{Zn}^{2+}+2 \mathrm{Cl}^{-}+\mathrm{H}_{2}}\)

1 \(\mathrm{\mathrm{Zn}^{2+}}\)
2 \(\mathrm{H^{+}}\)
3 \(\mathrm{\mathrm{Cl}^{-}}\)
4 None of these
Join With Us for More Updates
CHXI08:REDOX REACTIONS

315103 What is the value of ' \(\mathrm{x}\) ' in order to balance the following redox reaction by ion electron method? \(\mathrm{\mathrm{xH}_{2} \mathrm{O}_{2}+\mathrm{ClO}_{4}^{-} \rightarrow \mathrm{xO}_{2}+\mathrm{ClO}_{2}^{-}+2 \mathrm{H}_{2} \mathrm{O}}\)

1 3
2 4
3 1
4 2
MHTCET - 2021
CHXI08:REDOX REACTIONS

315104 In the redox reaction -
\(\rm{10 \mathrm{FeC}_{2} \mathrm{O}_{4}+x \mathrm{KMnO}_{4}+24 \mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow}\)
\(\mathrm{5 \mathrm{Fe}_{2}\left(\mathrm{SO}_{4}\right)_{3}+20 \mathrm{CO}_{2}+y \mathrm{MnSO}_{4}+3 \mathrm{~K}_{2} \mathrm{SO}_{4}+24 \mathrm{H}_{2} \mathrm{O}}\)
The values of \(\mathrm{x}\) and \(\mathrm{y}\) are respectively -

1 6, 3
2 3, 6
3 3, 3
4 6, 6
CHXI08:REDOX REACTIONS

315105 Which of the following is correctly balanced half reaction?

1 \(\mathrm{\mathrm{AsO}_{3}^{-3}+\mathrm{H}_{2} \mathrm{O} \rightarrow \mathrm{AsO}_{4}^{3-}+2 \mathrm{H}^{+}-2 e^{-}}\)
2 \(\mathrm{\mathrm{H}_{2} \mathrm{O}_{2}+2 e^{-} \rightarrow \mathrm{O}_{2}+2 \mathrm{H}^{+}}\)
3 \(\mathrm{\mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}+14 \mathrm{H}^{+} \rightarrow 2 \mathrm{Cr}^{+3}+7 \mathrm{H}_{2} \mathrm{O}-6 e^{-}}\)
4 \(\mathrm{\mathrm{IO}_{3}^{-}+6 \mathrm{H}^{+} \rightarrow \mathrm{I}_{2}+3 \mathrm{H}_{2} \mathrm{O}+5 e^{-}}\)
CHXI08:REDOX REACTIONS

315108 Which of the following ion is spectator ion in the reaction given below?
\(\rm{\mathrm{Zn}+2 \mathrm{H}^{+}+2 \mathrm{Cl}^{-} \longrightarrow \mathrm{Zn}^{2+}+2 \mathrm{Cl}^{-}+\mathrm{H}_{2}}\)

1 \(\mathrm{\mathrm{Zn}^{2+}}\)
2 \(\mathrm{H^{+}}\)
3 \(\mathrm{\mathrm{Cl}^{-}}\)
4 None of these
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