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Fluorine, the first member of group 17, ...

Fluorine, the first member of group 17, differs form the other members of group in may respects due to:
i. Very small size
ii. Very high electronegativity
iii. Absence of vacant d-orbitals in the valence shell
iv. Dissociation energy in the molecular form `(X_(2))` is the least
Which halogen does not form any oxyacid ?

A

Iodine

B

Bromine

C

Chlorine

D

Fluorine

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding which halogen does not form any oxyacid, we can follow these steps: ### Step 1: Understand the Concept of Oxyacids Oxyacids are acids that contain oxygen, hydrogen, and another element (in this case, a halogen). The ability of a halogen to form oxyacids is related to its oxidation states. Halogens can exhibit positive oxidation states, which are necessary for the formation of oxyacids. **Hint:** Recall that oxyacids require the halogen to have a positive oxidation state. ### Step 2: Analyze the Halogens The halogens in question are Fluorine (F), Chlorine (Cl), Bromine (Br), and Iodine (I). We need to determine their oxidation states: - **Fluorine (F)**: It primarily exhibits a -1 oxidation state and does not show positive oxidation states due to its very small size and high electronegativity. - **Chlorine (Cl)**: Can exhibit oxidation states of -1, +1, +3, +5, and +7. - **Bromine (Br)**: Can exhibit oxidation states of -1, +1, +3, +5, and +7. - **Iodine (I)**: Can exhibit oxidation states of -1, +1, +3, +5, and +7. **Hint:** Identify the oxidation states of each halogen and note which can exhibit positive states. ### Step 3: Identify the Halogen that Cannot Form Oxyacids Since Fluorine does not exhibit any positive oxidation states, it cannot form any oxyacids. In contrast, Chlorine, Bromine, and Iodine can form oxyacids due to their ability to exhibit positive oxidation states. **Hint:** Focus on the oxidation states of Fluorine compared to the others. ### Step 4: Conclusion Based on the analysis, the halogen that does not form any oxyacid is **Fluorine (F)**. **Final Answer:** Fluorine (F) does not form any oxyacid.
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