Types of Redox Reactions
« Previous Topic: Stoichiometry of Redox Reactions in Solutions Last Topic in »
CHXI08:REDOX REACTIONS

315467 Which of the following is a disproportionation reaction?

1 \(\mathrm{\mathrm{Cu}_{2} \mathrm{O}+2 \mathrm{H}^{+} \rightarrow \mathrm{Cu}+\mathrm{Cu}^{2+}+\mathrm{H}_{2} \mathrm{O}}\)
2 \(\mathrm{2 \mathrm{CrO}_{4}^{-2}+2 \mathrm{H}^{+} \rightarrow \mathrm{Cr}_{2} \mathrm{O}_{7}^{-2}+\mathrm{H}_{2} \mathrm{O}}\)
3 \(\mathrm{\mathrm{CaCO}_{3}+2 \mathrm{H}^{+} \rightarrow \mathrm{Ca}^{2+}+\mathrm{H}_{2} \mathrm{O}+\mathrm{CO}_{2}}\)
4 \(\mathrm{\mathrm{CrO}_{7}^{-2}+2 \mathrm{OH}^{-} \rightarrow 2 \mathrm{CrO}_{4}^{-2}+\mathrm{H}_{2} \mathrm{O}}\)
CHXI08:REDOX REACTIONS

315468 Among the following, the one that is a disproportionation reaction is

1 \(\mathrm{\mathrm{P}_{4}+\mathrm{OH}^{-} \rightarrow \mathrm{H}_{2} \mathrm{PO}_{4}^{-}+\mathrm{PH}_{3}}\)
2 \(\mathrm{\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2} \rightarrow \mathrm{PbO}+\mathrm{NO}_{2}+\mathrm{O}_{2}}\)
3 \(\mathrm{\mathrm{MnO}_{4}^{-} \rightarrow \mathrm{MnO}_{2}+\mathrm{MnO}_{4}^{2-}+\mathrm{O}_{2}}\)
4 \(\mathrm{\mathrm{Zn}+2 \mathrm{AgCN} \rightarrow 2 \mathrm{Ag}+\mathrm{Zn}(\mathrm{CN})_{2}}\)
CHXI08:REDOX REACTIONS

315469 In the complex, \(\left[\mathrm{Cr}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]^{+}\), the oxidation number of \(\mathrm{Cr}\) is

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

315470 Which of the following is not an intramolecular redox reaction?

1 \(\mathrm{\mathrm{NH}_{4} \mathrm{NO}_{2} \rightarrow \mathrm{N}_{2}+2 \mathrm{H}_{2} \mathrm{O}}\)
2 \(\mathrm{2 \mathrm{Mn}_{2} \mathrm{O}_{7} \rightarrow 4 \mathrm{MnO}_{2}+3 \mathrm{O}_{2}}\)
3 \(\mathrm{2 \mathrm{KClO}_{3} \rightarrow 2 \mathrm{KCl}+3 \mathrm{O}_{2}}\)
4 \(\mathrm{2 \mathrm{H}_{2} \mathrm{O}_{2} \rightarrow 2 \mathrm{H}_{2} \mathrm{O}+\mathrm{O}_{2}}\)
For More Updates join with Us
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
CHXI08:REDOX REACTIONS

315467 Which of the following is a disproportionation reaction?

1 \(\mathrm{\mathrm{Cu}_{2} \mathrm{O}+2 \mathrm{H}^{+} \rightarrow \mathrm{Cu}+\mathrm{Cu}^{2+}+\mathrm{H}_{2} \mathrm{O}}\)
2 \(\mathrm{2 \mathrm{CrO}_{4}^{-2}+2 \mathrm{H}^{+} \rightarrow \mathrm{Cr}_{2} \mathrm{O}_{7}^{-2}+\mathrm{H}_{2} \mathrm{O}}\)
3 \(\mathrm{\mathrm{CaCO}_{3}+2 \mathrm{H}^{+} \rightarrow \mathrm{Ca}^{2+}+\mathrm{H}_{2} \mathrm{O}+\mathrm{CO}_{2}}\)
4 \(\mathrm{\mathrm{CrO}_{7}^{-2}+2 \mathrm{OH}^{-} \rightarrow 2 \mathrm{CrO}_{4}^{-2}+\mathrm{H}_{2} \mathrm{O}}\)
CHXI08:REDOX REACTIONS

315468 Among the following, the one that is a disproportionation reaction is

1 \(\mathrm{\mathrm{P}_{4}+\mathrm{OH}^{-} \rightarrow \mathrm{H}_{2} \mathrm{PO}_{4}^{-}+\mathrm{PH}_{3}}\)
2 \(\mathrm{\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2} \rightarrow \mathrm{PbO}+\mathrm{NO}_{2}+\mathrm{O}_{2}}\)
3 \(\mathrm{\mathrm{MnO}_{4}^{-} \rightarrow \mathrm{MnO}_{2}+\mathrm{MnO}_{4}^{2-}+\mathrm{O}_{2}}\)
4 \(\mathrm{\mathrm{Zn}+2 \mathrm{AgCN} \rightarrow 2 \mathrm{Ag}+\mathrm{Zn}(\mathrm{CN})_{2}}\)
CHXI08:REDOX REACTIONS

315469 In the complex, \(\left[\mathrm{Cr}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]^{+}\), the oxidation number of \(\mathrm{Cr}\) is

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

315470 Which of the following is not an intramolecular redox reaction?

1 \(\mathrm{\mathrm{NH}_{4} \mathrm{NO}_{2} \rightarrow \mathrm{N}_{2}+2 \mathrm{H}_{2} \mathrm{O}}\)
2 \(\mathrm{2 \mathrm{Mn}_{2} \mathrm{O}_{7} \rightarrow 4 \mathrm{MnO}_{2}+3 \mathrm{O}_{2}}\)
3 \(\mathrm{2 \mathrm{KClO}_{3} \rightarrow 2 \mathrm{KCl}+3 \mathrm{O}_{2}}\)
4 \(\mathrm{2 \mathrm{H}_{2} \mathrm{O}_{2} \rightarrow 2 \mathrm{H}_{2} \mathrm{O}+\mathrm{O}_{2}}\)
NEET DIGITAL LIBRARY
CHXI08:REDOX REACTIONS

315467 Which of the following is a disproportionation reaction?

1 \(\mathrm{\mathrm{Cu}_{2} \mathrm{O}+2 \mathrm{H}^{+} \rightarrow \mathrm{Cu}+\mathrm{Cu}^{2+}+\mathrm{H}_{2} \mathrm{O}}\)
2 \(\mathrm{2 \mathrm{CrO}_{4}^{-2}+2 \mathrm{H}^{+} \rightarrow \mathrm{Cr}_{2} \mathrm{O}_{7}^{-2}+\mathrm{H}_{2} \mathrm{O}}\)
3 \(\mathrm{\mathrm{CaCO}_{3}+2 \mathrm{H}^{+} \rightarrow \mathrm{Ca}^{2+}+\mathrm{H}_{2} \mathrm{O}+\mathrm{CO}_{2}}\)
4 \(\mathrm{\mathrm{CrO}_{7}^{-2}+2 \mathrm{OH}^{-} \rightarrow 2 \mathrm{CrO}_{4}^{-2}+\mathrm{H}_{2} \mathrm{O}}\)
CHXI08:REDOX REACTIONS

315468 Among the following, the one that is a disproportionation reaction is

1 \(\mathrm{\mathrm{P}_{4}+\mathrm{OH}^{-} \rightarrow \mathrm{H}_{2} \mathrm{PO}_{4}^{-}+\mathrm{PH}_{3}}\)
2 \(\mathrm{\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2} \rightarrow \mathrm{PbO}+\mathrm{NO}_{2}+\mathrm{O}_{2}}\)
3 \(\mathrm{\mathrm{MnO}_{4}^{-} \rightarrow \mathrm{MnO}_{2}+\mathrm{MnO}_{4}^{2-}+\mathrm{O}_{2}}\)
4 \(\mathrm{\mathrm{Zn}+2 \mathrm{AgCN} \rightarrow 2 \mathrm{Ag}+\mathrm{Zn}(\mathrm{CN})_{2}}\)
CHXI08:REDOX REACTIONS

315469 In the complex, \(\left[\mathrm{Cr}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]^{+}\), the oxidation number of \(\mathrm{Cr}\) is

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

315470 Which of the following is not an intramolecular redox reaction?

1 \(\mathrm{\mathrm{NH}_{4} \mathrm{NO}_{2} \rightarrow \mathrm{N}_{2}+2 \mathrm{H}_{2} \mathrm{O}}\)
2 \(\mathrm{2 \mathrm{Mn}_{2} \mathrm{O}_{7} \rightarrow 4 \mathrm{MnO}_{2}+3 \mathrm{O}_{2}}\)
3 \(\mathrm{2 \mathrm{KClO}_{3} \rightarrow 2 \mathrm{KCl}+3 \mathrm{O}_{2}}\)
4 \(\mathrm{2 \mathrm{H}_{2} \mathrm{O}_{2} \rightarrow 2 \mathrm{H}_{2} \mathrm{O}+\mathrm{O}_{2}}\)
Join With Us for More Updates
CHXI08:REDOX REACTIONS

315467 Which of the following is a disproportionation reaction?

1 \(\mathrm{\mathrm{Cu}_{2} \mathrm{O}+2 \mathrm{H}^{+} \rightarrow \mathrm{Cu}+\mathrm{Cu}^{2+}+\mathrm{H}_{2} \mathrm{O}}\)
2 \(\mathrm{2 \mathrm{CrO}_{4}^{-2}+2 \mathrm{H}^{+} \rightarrow \mathrm{Cr}_{2} \mathrm{O}_{7}^{-2}+\mathrm{H}_{2} \mathrm{O}}\)
3 \(\mathrm{\mathrm{CaCO}_{3}+2 \mathrm{H}^{+} \rightarrow \mathrm{Ca}^{2+}+\mathrm{H}_{2} \mathrm{O}+\mathrm{CO}_{2}}\)
4 \(\mathrm{\mathrm{CrO}_{7}^{-2}+2 \mathrm{OH}^{-} \rightarrow 2 \mathrm{CrO}_{4}^{-2}+\mathrm{H}_{2} \mathrm{O}}\)
CHXI08:REDOX REACTIONS

315468 Among the following, the one that is a disproportionation reaction is

1 \(\mathrm{\mathrm{P}_{4}+\mathrm{OH}^{-} \rightarrow \mathrm{H}_{2} \mathrm{PO}_{4}^{-}+\mathrm{PH}_{3}}\)
2 \(\mathrm{\mathrm{Pb}\left(\mathrm{NO}_{3}\right)_{2} \rightarrow \mathrm{PbO}+\mathrm{NO}_{2}+\mathrm{O}_{2}}\)
3 \(\mathrm{\mathrm{MnO}_{4}^{-} \rightarrow \mathrm{MnO}_{2}+\mathrm{MnO}_{4}^{2-}+\mathrm{O}_{2}}\)
4 \(\mathrm{\mathrm{Zn}+2 \mathrm{AgCN} \rightarrow 2 \mathrm{Ag}+\mathrm{Zn}(\mathrm{CN})_{2}}\)
CHXI08:REDOX REACTIONS

315469 In the complex, \(\left[\mathrm{Cr}\left(\mathrm{NH}_{3}\right)_{4} \mathrm{Cl}_{2}\right]^{+}\), the oxidation number of \(\mathrm{Cr}\) is

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

315470 Which of the following is not an intramolecular redox reaction?

1 \(\mathrm{\mathrm{NH}_{4} \mathrm{NO}_{2} \rightarrow \mathrm{N}_{2}+2 \mathrm{H}_{2} \mathrm{O}}\)
2 \(\mathrm{2 \mathrm{Mn}_{2} \mathrm{O}_{7} \rightarrow 4 \mathrm{MnO}_{2}+3 \mathrm{O}_{2}}\)
3 \(\mathrm{2 \mathrm{KClO}_{3} \rightarrow 2 \mathrm{KCl}+3 \mathrm{O}_{2}}\)
4 \(\mathrm{2 \mathrm{H}_{2} \mathrm{O}_{2} \rightarrow 2 \mathrm{H}_{2} \mathrm{O}+\mathrm{O}_{2}}\)
For More Updates join with Us
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here