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Assertion: Metal dificiency defect can b...

Assertion: Metal dificiency defect can be seen in FeO.
Reason: Li compound (LiCl) has pink colour due to F-centre

A

If both assertion and reason are correct and reason is correct explanation for assertion

B

If both assertion and reason are correct but reason is not correct explanation for assertion

C

If assertion is correct but reason is incorrect

D

If both assertion and reason are incorrect

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze both the assertion and the reason provided. ### Step-by-Step Solution: 1. **Understanding the Assertion**: - The assertion states that "Metal deficiency defect can be seen in FeO." - In FeO (Iron(II) oxide), there can be a deficiency of metal ions (Fe²⁺ ions) in the crystal lattice. This occurs when some Fe²⁺ ions are missing from the lattice. To maintain electrical neutrality, some Fe²⁺ ions may be replaced by Fe³⁺ ions. This results in a metal deficiency defect in the crystal structure. - **Conclusion**: The assertion is **correct**. 2. **Understanding the Reason**: - The reason states that "Li compound (LiCl) has pink color due to F-centre." - In LiCl (Lithium chloride), the pink color arises from the presence of F-centres, which are created due to the absence of some Cl⁻ ions (anion vacancies). These vacancies allow free electrons to occupy the spaces, which gives rise to the characteristic pink color. - **Conclusion**: The reason is also **correct**. 3. **Analyzing the Relationship**: - While both the assertion and the reason are correct, they are not directly related to each other. The assertion discusses metal deficiency in FeO, while the reason discusses the color of LiCl due to F-centres. - Therefore, the reason does not provide a correct explanation for the assertion. 4. **Final Answer**: - Both the assertion and reason are correct, but the reason is not the correct explanation for the assertion. Thus, the correct answer is option 2.
To solve the question, we need to analyze both the assertion and the reason provided. ### Step-by-Step Solution: 1. **Understanding the Assertion**: - The assertion states that "Metal deficiency defect can be seen in FeO." - In FeO (Iron(II) oxide), there can be a deficiency of metal ions (Fe²⁺ ions) in the crystal lattice. This occurs when some Fe²⁺ ions are missing from the lattice. To maintain electrical neutrality, some Fe²⁺ ions may be replaced by Fe³⁺ ions. This results in a metal deficiency defect in the crystal structure. - **Conclusion**: The assertion is **correct**. ...
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