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Fill in the blanks. The high reactivit...

Fill in the blanks.
The high reactivity of fluorine is due to its ____ dissociation energy. Its shows _____ only oxidation state. It has ____ electron affinity than chlorine. Among all hydrogen halides boiling point is highest for_____.

A

low, -1, lower, HF

B

high,+ 1, higher, HF

C

low, +1, lower, HCl

D

high, -1, higher, HF

Text Solution

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The correct Answer is:
To solve the question, we will fill in the blanks step by step based on the properties of fluorine and its compounds. 1. **The high reactivity of fluorine is due to its ____ dissociation energy.** - Fluorine has a low dissociation energy because it has a high repulsion between its electrons due to its small atomic size and high electronegativity. This means that it can easily break its bonds, leading to high reactivity. - **Answer:** low 2. **It shows _____ only oxidation state.** - Fluorine typically exhibits a -1 oxidation state. This is because it has seven electrons in its outer shell and readily gains one electron to achieve a stable octet configuration. - **Answer:** -1 3. **It has ____ electron affinity than chlorine.** - Fluorine has a lower electron affinity compared to chlorine. Although fluorine is highly electronegative, the small size of the fluorine atom leads to significant electron-electron repulsion when an additional electron is added, making it less favorable than chlorine, which has a larger atomic radius and can accommodate an additional electron more easily. - **Answer:** lower 4. **Among all hydrogen halides, the boiling point is highest for _____.** - Among the hydrogen halides (HF, HCl, HBr, HI), HF has the highest boiling point due to the presence of strong hydrogen bonding between HF molecules. This hydrogen bonding is stronger than the Van der Waals forces present in the other hydrogen halides. - **Answer:** HF Putting it all together, we have: - The high reactivity of fluorine is due to its **low** dissociation energy. It shows **-1** only oxidation state. It has **lower** electron affinity than chlorine. Among all hydrogen halides, the boiling point is highest for **HF**.
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