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The oxidation sates of metal in the comp...

The oxidation sates of metal in the compounds `Fe_(0.94)O` and `[Cr(P Ph_(3))_(3)(CO)_(3)]` respectively are

A

`(200)/(94),0`

B

`0,(94)/(200)`

C

`2,1`

D

`1, (200)/(94)`

Text Solution

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The correct Answer is:
To find the oxidation states of metals in the compounds \( Fe_{0.94}O \) and \( [Cr(PPh_{3})_{3}(CO)_{3}] \), we will follow these steps: ### Step 1: Determine the oxidation state of iron in \( Fe_{0.94}O \) 1. **Identify the oxidation state of oxygen**: In most compounds, oxygen has an oxidation state of -2. 2. **Let the oxidation state of iron (Fe) be \( x \)**. Since there are 0.94 moles of iron, the contribution of iron to the oxidation state will be \( 0.94x \). 3. **Set up the equation**: The sum of the oxidation states must equal zero because the compound is neutral. Thus, we write the equation: \[ 0.94x + (-2) = 0 \] 4. **Solve for \( x \)**: \[ 0.94x - 2 = 0 \implies 0.94x = 2 \implies x = \frac{2}{0.94} \approx 2.13 \] ### Step 2: Determine the oxidation state of chromium in \( [Cr(PPh_{3})_{3}(CO)_{3}] \) 1. **Identify the oxidation states of the ligands**: - \( PPh_{3} \) (triphenylphosphine) is a neutral ligand, so its oxidation state is 0. - \( CO \) (carbon monoxide) is also a neutral ligand, so its oxidation state is 0. 2. **Let the oxidation state of chromium (Cr) be \( y \)**. There is one chromium atom in the complex, so the equation becomes: \[ y + 0 \cdot 3 + 0 \cdot 3 = 0 \] 3. **Solve for \( y \)**: \[ y = 0 \] ### Final Answer The oxidation states of the metals in the compounds \( Fe_{0.94}O \) and \( [Cr(PPh_{3})_{3}(CO)_{3}] \) are approximately \( 2.13 \) and \( 0 \), respectively. ### Summary - Oxidation state of Fe in \( Fe_{0.94}O \): \( \frac{200}{94} \) or approximately \( 2.13 \) - Oxidation state of Cr in \( [Cr(PPh_{3})_{3}(CO)_{3}] \): \( 0 \)

To find the oxidation states of metals in the compounds \( Fe_{0.94}O \) and \( [Cr(PPh_{3})_{3}(CO)_{3}] \), we will follow these steps: ### Step 1: Determine the oxidation state of iron in \( Fe_{0.94}O \) 1. **Identify the oxidation state of oxygen**: In most compounds, oxygen has an oxidation state of -2. 2. **Let the oxidation state of iron (Fe) be \( x \)**. Since there are 0.94 moles of iron, the contribution of iron to the oxidation state will be \( 0.94x \). 3. **Set up the equation**: The sum of the oxidation states must equal zero because the compound is neutral. Thus, we write the equation: \[ ...
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Knowledge Check

  • What are the oxidation states of phosphorus in the following compounds ? H_(3)PO_(2),H_(3)PO_(4),Mg_(2)P_(2)O_(7),PH_(3),HPO_(3)

    A
    `+1, +3, +3, +3, +5`
    B
    `+3, +3, +5, +5, +5`
    C
    `+1, +2, +3, +5, +5`
    D
    `+1, +5, +5, -3, +5`
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