PYQ Vault
EbooksTutor

Oxidising power of halogens and halogen species

This type of question, asked 4 times: 8 Apr 2023, 13 Apr 2023, 30 Jan 2024, 2 Apr 2026 S1. All 4 questions below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    8 Apr 2023

    46
    Which halogen is known to cause the reaction given below?
    2Cu2++4X−→Cu2X2( s)+X22Cu^{2 +}+ 4X^{-}\rightarrow Cu_{2}X_{2}(\text{ }s) +X_{2}

    Tap an option to check your answer.

  2. Question 2

    13 Apr 2023

    134
    The correct group of halide ions which can be oxidised by oxygen in acidic medium is

    Tap an option to check your answer.

  3. Question 3

    30 Jan 2024

    140
    Reduction potential of ions are given below:
    ClO4−IO4−BrO4−E∘=1.19 VE∘=1.65 VE∘=1.74 V\begin{matrix} ClO_{4}^{-} & IO_{4}^{-} & BrO_{4}^{-} \\ E^{\circ}= 1.19\text{ }V & E^{\circ}= 1.65\text{ }V & E^{\circ}= 1.74\text{ }V \end{matrix}
    The correct order of their oxidising power is:

    Tap an option to check your answer.

  4. Question 4

    2 Apr 2026 S1

    35
    Given below are two statements : Statement (I) : Oxidising power of halogens decreases in the order F2>Cl2>Br2>I2F_{2} > {Cl}_{2} > {Br}_{2} > I_{2}, which is the basis of "Layer test". Statement (II): "Layer test" to identify Br2{Br}_{2} and I2I_{2} in aqueous solution involves the oxidation of bromide or iodide into Br2{Br}_{2} or I2I_{2} respectively with Cl2{Cl}_{2}, which is a type of displacement redox reaction. In the light of the above statements, choose the correct answer from the options given below :

    Tap an option to check your answer.