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Which of the following is not isostruct...

Which of the following is not isostructural with `SiCI_(4)` ?

A

`SCl_4`

B

`SO_4^(2-)`

C

`PO_4^(3-)`

D

`NH_4^(+)`

Text Solution

AI Generated Solution

The correct Answer is:
To determine which of the given molecules is not isostructural with SiCl4, we need to analyze the structure and hybridization of SiCl4 and compare it with the other molecules. ### Step-by-Step Solution: 1. **Identify the Structure of SiCl4**: - Silicon (Si) has 4 electrons in its outermost shell (configuration: 1s² 2s² 2p⁶ 3s² 3p²). - Si forms four bonds with four chlorine (Cl) atoms. - Since there are no lone pairs on silicon, the hybridization is **sp³**. - The molecular geometry is **tetrahedral**. 2. **Analyze the Given Molecules**: - We will analyze the structures of the following molecules: SCl4, SO4²⁻, PO4³⁻, and NH4⁺. 3. **Structure of SCl4**: - Sulfur (S) has 6 electrons in its outermost shell. - In SCl4, sulfur forms four bonds with chlorine and has one lone pair. - The hybridization is **sp³d** (4 bond pairs + 1 lone pair). - The geometry is **trigonal bipyramidal**, which is not tetrahedral. 4. **Structure of SO4²⁻**: - Sulfur has 6 electrons, and with 2 additional electrons (due to the 2- charge), it has 8 electrons. - It forms four bonds with oxygen atoms. - The hybridization is **sp³**. - The geometry is **tetrahedral**. 5. **Structure of PO4³⁻**: - Phosphorus (P) has 5 electrons, and with 3 additional electrons (due to the 3- charge), it has 8 electrons. - It forms four bonds with oxygen atoms. - The hybridization is **sp³**. - The geometry is **tetrahedral**. 6. **Structure of NH4⁺**: - Nitrogen (N) has 5 electrons, and with the removal of one electron (due to the +1 charge), it has 4 electrons. - It forms four bonds with hydrogen atoms. - The hybridization is **sp³**. - The geometry is **tetrahedral**. 7. **Conclusion**: - The only molecule that does not have a tetrahedral structure is **SCl4**. Therefore, SCl4 is not isostructural with SiCl4. ### Final Answer: The molecule that is not isostructural with SiCl4 is **SCl4**.

To determine which of the given molecules is not isostructural with SiCl4, we need to analyze the structure and hybridization of SiCl4 and compare it with the other molecules. ### Step-by-Step Solution: 1. **Identify the Structure of SiCl4**: - Silicon (Si) has 4 electrons in its outermost shell (configuration: 1s² 2s² 2p⁶ 3s² 3p²). - Si forms four bonds with four chlorine (Cl) atoms. - Since there are no lone pairs on silicon, the hybridization is **sp³**. ...
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