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Which element can have oxidation state f...

Which element can have oxidation state from 4 to 6?

A

Fe

B

Mg

C

Co

D

Cr

Text Solution

AI Generated Solution

The correct Answer is:
To determine which element can have oxidation states from +4 to +6, we will analyze the oxidation states of the given options: Iron (Fe), Magnesium (Mg), Cobalt (Co), and Chromium (Cr). ### Step-by-Step Solution: 1. **Analyze Iron (Fe)**: - The electronic configuration of Iron is \( [Ar] 3d^6 4s^2 \). - Iron can exhibit oxidation states of +2, +3, +4, +5, and +6. - However, the +4, +5, and +6 oxidation states are unstable. - **Conclusion**: Iron cannot be the answer since +6 is unstable. 2. **Analyze Magnesium (Mg)**: - The electronic configuration of Magnesium is \( [Ne] 3s^2 \). - Magnesium is an alkaline earth metal and typically exhibits only a +2 oxidation state. - **Conclusion**: Magnesium cannot be the answer since it does not exhibit +4 to +6 oxidation states. 3. **Analyze Cobalt (Co)**: - The electronic configuration of Cobalt is \( [Ar] 3d^7 4s^2 \). - Cobalt can show oxidation states of +2, +3, and +4. - The +4 oxidation state is unstable. - **Conclusion**: Cobalt cannot be the answer since it does not exhibit +4 to +6 oxidation states. 4. **Analyze Chromium (Cr)**: - The electronic configuration of Chromium is \( [Ar] 3d^5 4s^1 \). - Chromium can exhibit oxidation states of +1, +2, +3, +4, +5, and +6. - Among these, +1, +4, and +5 are unstable. - **Conclusion**: Chromium can exhibit +4 to +6 oxidation states, making it the correct answer. ### Final Answer: The element that can have oxidation states from +4 to +6 is **Chromium (Cr)**.
To determine which element can have oxidation states from +4 to +6, we will analyze the oxidation states of the given options: Iron (Fe), Magnesium (Mg), Cobalt (Co), and Chromium (Cr). ### Step-by-Step Solution: 1. **Analyze Iron (Fe)**: - The electronic configuration of Iron is \( [Ar] 3d^6 4s^2 \). - Iron can exhibit oxidation states of +2, +3, +4, +5, and +6. - However, the +4, +5, and +6 oxidation states are unstable. ...
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