STANDARD Chemistry Redox Reactions Class 11 Questions

Which of the following statements is not true?

Which of the following is not a redox reaction?

Which species is acting as a reducing agent in the following reaction? 14H⁺ + Cr₂O₇²⁻ + 3Ni → 2Cr³⁺ + 7H₂O + 3Ni²⁺

Carbon is in the lowest oxidation state in

Which of the following is a decreasing order of oxidation states of the central atoms?

In which of the following compounds oxidation state of chlorine has two different values?

Following order is observed in oxidising power of certain ions : VO₂⁺ < Cr₂O₇²⁻ < MnO₄⁻ The reason for this increasing order of oxidising power is

Which of the following can act as oxidizing as well as reducing agent?

Identify the correct statement with respect to the following reaction: 2K₂MnO₄ + Cl₂ → 2KCl + 2KMnO₄

In which of the following reactions, the underlined substance has been reduced?

Which of the following is true about the given redox reaction? SnCl₂ + 2FeCl₃ → SnCl₄ + 2FeCl₂

Which type of redox reaction is shown by the following reaction? Cl₂(g) + 2KBr(aq) → 2KCl(aq) + Br₂(l)

Which of the following is not an example of disproportionation reaction?

Phosphorus on reaction with NaOH produces PH₃ and NaH₂PO₂. This reaction is an example of

The oxidation number of Cr in CrO₅ which has the following structure is

What will be the balanced equation in acidic medium for the given reaction? Cr₂O₇²⁻(aq) + SO₂(g) → Cr³⁺(aq) + SO₄²⁻(aq)

Which of the following is correct representation of a given molecular equation in ionic form? K₂Cr₂O₇ + 7H₂SO₄ + 6FeSO₄ → 3Fe₂(SO₄)₃ + Cr₂(SO₄)₃ + K₂SO₄ + 7H₂O

The values of coefficients to balance the following reaction are Cr(OH)₃ + ClO⁻ + OH⁻ → CrO₄²⁻ + Cl⁻ + H₂O

Fluorine is best oxidising agent because

Which of the following halides is most easily oxidised?

Which of the following is not an example of redox reaction?

In which of the following compounds, an element exhibits two different oxidation states?

In the redox reaction, Pb₃O₄ + 8HCl → 3PbCl₂ + Cl₂ + 4H₂O

Which of the following reactions is an example of a redox reaction?

For the redox reaction, MnO₄⁻ + C₂O₄²⁻ + H⁺ → Mn²⁺ + CO₂ + H₂O The correct coefficients of the reactants for the balanced equation are

Substances that are oxidised and reduced in the following reaction are respectively N₂H₄(l) + 2H₂O₂(l) → N₂(g) + 4H₂O(l)

The equation 3MnO₄²⁻ + 4H⁺ → 2MnO₄⁻ + MnO₂ + 2H₂O represents

KMnO₄ acts as an oxidising agent in acidic medium. The number of moles of KMnO₄ that will be needed to react with one mole of sulphide ions in acidic solution is

In the neutral or faintly alkaline medium KMnO₄ oxidises iodide into iodate. The change in oxidation state of manganese in this reaction is from

The reaction of H₂O₂ with potassium permanganate in acidic medium leads to the formation of mainly

Oxidation state of iron in ferric is