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Which of the following statements are co...

Which of the following statements are correct?
I. Among halogens, radius ratio between iodine and fluorine is maximum.
II. Leaving F-F bond, all halogens have weaker X-X bond than X-X' bond in interhalogens.
III. Among interhalogen compounds, maximum number of atoms are present in iodine fluoride.
IV. Interhalogen compounds are more reactive than halogen compounds.
The correct option is

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The correct Answer is:
To determine which statements are correct regarding halogens and interhalogen compounds, let's analyze each statement step by step. ### Step 1: Analyze Statement I **Statement I:** Among halogens, the radius ratio between iodine and fluorine is maximum. - **Explanation:** The atomic radius of iodine is significantly larger than that of fluorine. The radius ratio (Iodine radius / Fluorine radius) is indeed maximum among halogens due to the large size of iodine compared to the small size of fluorine. Thus, this statement is **correct**. ### Step 2: Analyze Statement II **Statement II:** Leaving F-F bond, all halogens have weaker X-X bond than X-X' bond in interhalogens. - **Explanation:** The bond strength of X-X bonds (where X is a halogen) is generally stronger than that of X-X' bonds in interhalogens, except for the F-F bond which is weak due to repulsion between the lone pairs. Therefore, this statement is **incorrect**. ### Step 3: Analyze Statement III **Statement III:** Among interhalogen compounds, the maximum number of atoms are present in iodine fluoride. - **Explanation:** The maximum number of atoms in interhalogen compounds occurs when the larger iodine can accommodate multiple smaller fluorine atoms around it. Since the radius ratio between iodine and fluorine is maximum, this statement is **correct**. ### Step 4: Analyze Statement IV **Statement IV:** Interhalogen compounds are more reactive than halogen compounds. - **Explanation:** Interhalogen compounds have weaker X-X' bonds compared to X-X bonds in halogens. Weaker bonds are easier to break, leading to higher reactivity. Thus, this statement is **correct**. ### Conclusion The correct statements are: - Statement I: Correct - Statement II: Incorrect - Statement III: Correct - Statement IV: Correct ### Final Answer The correct options are I, III, and IV. ---
To determine which statements are correct regarding halogens and interhalogen compounds, let's analyze each statement step by step. ### Step 1: Analyze Statement I **Statement I:** Among halogens, the radius ratio between iodine and fluorine is maximum. - **Explanation:** The atomic radius of iodine is significantly larger than that of fluorine. The radius ratio (Iodine radius / Fluorine radius) is indeed maximum among halogens due to the large size of iodine compared to the small size of fluorine. Thus, this statement is **correct**. ### Step 2: Analyze Statement II ...
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