Q.60. Given below are two statements : Statement (I): Oxidising power of halogens decreases in the o

Q: What is the correct answer for this exam Chemistry Q60?

The correct answer is A. **Statement (I):** The oxidizing power of halogens decreases down the group. Fluorine is the strongest oxidizing agent, followed by chlorine, bromine, and iodine. So, the order F$_2$ > Cl$_2$ > Br$_2$ > I$_2$ is correct. This trend is indeed the basis for the 'Layer test' where a more reactive halogen displaces a less reactive halide from its solution. Thus, Statement (I) is true. **Statement (II

Q: Q.60. Given below are two statements : Statement (I): Oxidising power of halogens decreases in the order F > Cl > Br > I, which is the basis of "Layer test". Statement (II): "Layer test" to identify…

The correct answer is A. **Statement (I):** The oxidizing power of halogens decreases down the group. Fluorine is the strongest oxidizing agent, followed by chlorine, bromine, and iodine. So, the order F$_2$ > Cl$_2$ > Br$_2$ > I$_2$ is correct. This trend is indeed the basis for the 'Layer test' where a more reactive halogen displaces a less reactive halide from its solution. Thus, Statement (I) is true. **Statement (II

Q: What are the options for this this exam Chemistry question?

A. Both Statement I and Statement II are true · B. Both Statement I and Statement II are false · C. Statement I is true but Statement II is false · D. Statement I is false but Statement II is true

Question

Q.60. Given below are two statements : Statement (I): Oxidising power of halogens decreases in the order F > Cl > Br > I, which is the basis of "Layer test". Statement (II): "Layer test" to identify Br and I in aqueous solution involves the oxidation of bromide or iodide into Br or I respectively with Cl, which is a type of displacement redox reaction. In the light of the above statements, choose the correct answer from the options given below :

FirstInTest · Accepted Answer

**Statement (I):** The oxidizing power of halogens decreases down the group. Fluorine is the strongest oxidizing agent, followed by chlorine, bromine, and iodine. So, the order F$_2$ > Cl$_2$ > Br$_2$ > I$_2$ is correct. This trend is indeed the basis for the 'Layer test' where a more reactive halogen displaces a less reactive halide from its solution. Thus, Statement (I) is true.

**Statement (II):** The 'Layer test' is used to identify halide ions (Br$^{-}$ and I$^{-}$) in solution. It involves adding a more reactive halogen (like Cl$_2$ water) to the halide solution. For example, if Cl$_2$ water is added to a solution containing Br$^{-}$ ions, Cl$_2$ displaces Br$^{-}$ to form Br$_2$: $\mathrm{Cl_2(aq)} + 2\mathrm{Br^-(aq)} \rightarrow 2\mathrm{Cl^-(aq)} + \mathrm{Br_2(aq)}$. Similarly, for I$^{-}$: $\mathrm{Cl_2(aq)} + 2\mathrm{I^-(aq)} \rightarrow 2\mathrm{Cl^-(aq)} + \mathrm{I_2(aq)}$. These are indeed displacement redox reactions where a more electronegative halogen oxidizes a less electronegative halide ion. Thus, Statement (II) is true.

Since both statements are true, option (1) is the correct answer.

Answer

Both Statement I and Statement II are true

Answer

Both Statement I and Statement II are false

Answer

Statement I is true but Statement II is false

Answer

Statement I is false but Statement II is true

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