JEE Questions for Chemistry Redox Reactions Quiz 3 - MCQExams.com


Chemistry-Redox Reactions-6699.png
  • 1, 4, 4, 1, 2
  • 1, 4, 2, 1, 2
  • 1, 4, 3, 1, 2
  • 1, 4, 1, 1, 2

Chemistry-Redox Reactions-6700.png
  • 5, 2 and 16
  • 2, 5 and 8
  • 2, 5 and 16
  • 5, 2 and 8
Which order of compounds in according to the decreasing order of the oxidation state of nitrogen?
  • HNO3 , NO, NH4 Cl, N2
  • HNO3 , NO, N2, NH4 Cl
  • HNO3 , N2, NH4 Cl, NO
  • HNO3 , NH4 Cl, N2 , NO
Reaction of Br2 with Na2 CO3 in aqueous solution gives sodium bromide and sodium bromate with evolution of CO2 gas. The number of sodium bromide molecules involved in the balanced chemical equation is
  • 1
  • 3
  • 5
  • 7
Oxidation states of the metal in the minerals haematite and magnetite, respectively, are
  • II, III in haematite and III in magnetite,
  • II, III in haematite and II in magnetite
  • II in haematite and II, III in magnetite
  • III in haematite and II, III in magnetite

Chemistry-Redox Reactions-6702.png
  • 5
  • 4
  • 3
  • 2
  • 1

Chemistry-Redox Reactions-6703.png
  • Only I
  • Only II
  • I and III
  • I, II and III
In which of the following, the oxidation number of oxygen has been arranged in increasing order ?
  • OF2 < KO2 < BaO2 < O3
  • BaO2 < KO2 < O3 < OF2
  • BaO2 < O3 < OF2 < KO2
  • KO2 < OF2 < O3 < BaO2
  • OF2 < O3 < KO2 < BaO2

Chemistry-Redox Reactions-6704.png
  • 6
  • 5
  • 4
  • 2
Which of the following chemical reactions depicts the oxidising behaviour of H2 SO4 ?
  • 2HI + H2 SO4 → I2 + SO2 + 2H2O
  • Ca(OH)2 + H2 SO4 → CaSO4 + 2H2O
  • NaCl + H2 SO4 → NaHSO4 + HCl
  • 2PCl5 + H2 SO4 → 2POCl3 + 2HCl + SO2 Cl2
Which one of the following is a redox reaction ?
  • NaCl + KNO3 → NaNO3 + KCl
  • CaC2O4 + 2HCl → CaCl2 + H2C2O4
  • Ca(OH)2 + 2NH4Cl → CaCl2 + 2NH3 + 2H2O
  • 2K[Ag(CN)2] + Zn → 2Ag + K2[Ag(CN)4]
Which one of the following reaction is possible at anode?
  • F2 + 2e - → 2F -
  • 2)
    Chemistry-Redox Reactions-6705.png

  • Chemistry-Redox Reactions-6706.png
  • Fe2+ → Fe 3+ + e -

Chemistry-Redox Reactions-6708.png
  • 1, 3, 4, 5
  • 5, 4, 3, 2
  • 5, 1, 3, 4
  • 2, 6, 4, 3
The oxidation number of C in sucrose (C12H22O11) is
  • + 4
  • + 3
  • + 2
  • zero
The oxidation number of C in HCN and HNC respectively are:
  • + 2, + 2
  • + 2, + 4
  • + 4, +4
  • -2, -2
Oxidation number of Carbon in carbon suboxide (C3O2) is
  • + 2/3
  • + 4/3
  • + 4
  • – 4/3

Chemistry-Redox Reactions-6710.png
  • + 2, + 2
  • -2, + 2
  • + 2, - 1
  • -2, + 1
In which of the following compounds, iron has the lowest oxidation number?

  • Chemistry-Redox Reactions-6712.png
  • 2)
    Chemistry-Redox Reactions-6713.png

  • Chemistry-Redox Reactions-6714.png

  • Chemistry-Redox Reactions-6715.png
In which of the following reactions, the underlined substance has been oxidized?

  • Chemistry-Redox Reactions-6717.png
  • 2)
    Chemistry-Redox Reactions-6718.png

  • Chemistry-Redox Reactions-6719.png

  • Chemistry-Redox Reactions-6720.png
In which of the following reactions, the underlined substance has been reduced?

  • Chemistry-Redox Reactions-6722.png
  • 2)
    Chemistry-Redox Reactions-6723.png

  • Chemistry-Redox Reactions-6724.png

  • Chemistry-Redox Reactions-6725.png
Which of the following represents a redox reaction?

  • Chemistry-Redox Reactions-6727.png
  • 2)
    Chemistry-Redox Reactions-6728.png

  • Chemistry-Redox Reactions-6729.png

  • Chemistry-Redox Reactions-6730.png

Chemistry-Redox Reactions-6841.png
  • 1, 1, 2, 2, 1
  • 2, 2, 1, 1, 1
  • 2, 1, 1, 2, 1
  • 2, 2, 1, 2, 1
  • 2, 2, 2, 1, 1
Which of the following represents a dispportionation reaction?

  • Chemistry-Redox Reactions-6732.png
  • 2)
    Chemistry-Redox Reactions-6733.png

  • Chemistry-Redox Reactions-6734.png
  • All the three above

Chemistry-Redox Reactions-6735.png
  • 28/6
  • 28
  • 28/2
  • 28/3

Chemistry-Redox Reactions-6737.png
  • 31.6
  • 52.7
  • 79.0
  • 158.0

Chemistry-Redox Reactions-6739.png
  • M
  • M/2
  • M/5
  • M/10
Equivalent weight of KMnO4 when it is converted into MnSO4 is
  • M/5
  • M/6
  • M/3
  • M/2

Chemistry-Redox Reactions-6742.png
  • 5
  • 4
  • 3
  • 2

Chemistry-Redox Reactions-6744.png
  • 2
  • 4
  • 6
  • 8

Chemistry-Redox Reactions-6746.png
  • 4, 1, 7
  • 7, 4, 1
  • 4, 1, 10
  • 1, 4, 10
0:0:1


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