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In AgCl, the Ag^(o+) ions are deisplaced...

In `AgCl`, the `Ag^(o+)` ions are deisplaced from their lattice position to an interstitial position. Such a defect is called

A

Schottky defect

B

Frenkel defect

C

Wadsley defect

D

Colour centre

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The correct Answer is:
To solve the question regarding the type of defect in `AgCl` when `Ag^(+)` ions are displaced from their lattice position to an interstitial position, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Structure of AgCl**: - Silver chloride (AgCl) is an ionic compound that consists of `Ag^(+)` cations and `Cl^(-)` anions arranged in a crystal lattice. 2. **Identifying the Displacement**: - The question states that `Ag^(+)` ions are displaced from their lattice positions to interstitial positions. An interstitial position is a space in the crystal lattice that is not normally occupied by an ion. 3. **Defining Types of Defects**: - In solid-state chemistry, defects in the crystal lattice can be classified into several types: - **Schottky Defect**: This occurs when equal numbers of cations and anions are missing from the lattice, maintaining charge neutrality. - **Frenkel Defect**: This occurs when an ion (usually a cation) is displaced from its lattice position to an interstitial site, creating a vacancy at its original site. - **Wetzler Defect**: This refers to a specific arrangement of anions in a hexagonal structure, which is not relevant here. - **Color Center**: This involves the presence of unpaired electrons in the lattice that can impart color to the material. 4. **Analyzing the Given Information**: - Since only the `Ag^(+)` ions are displaced and no `Cl^(-)` ions are missing, this does not fit the criteria for a Schottky defect. - The displacement of `Ag^(+)` ions to interstitial sites indicates a Frenkel defect. 5. **Conclusion**: - Therefore, the defect caused by the displacement of `Ag^(+)` ions from their lattice position to an interstitial position in `AgCl` is classified as a **Frenkel defect**. ### Final Answer: The defect in `AgCl` where `Ag^(+)` ions are displaced to interstitial positions is called a **Frenkel defect**.
To solve the question regarding the type of defect in `AgCl` when `Ag^(+)` ions are displaced from their lattice position to an interstitial position, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Structure of AgCl**: - Silver chloride (AgCl) is an ionic compound that consists of `Ag^(+)` cations and `Cl^(-)` anions arranged in a crystal lattice. 2. **Identifying the Displacement**: ...
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