Hybridisation
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313549 Consider the following iodides:
\[\begin{array}{*{20}{c}}
{{\rm{P}}{{\rm{I}}_{\rm{3}}}{\rm{,}}}&{{\rm{As}}{{\rm{I}}_{\rm{3}}}{\rm{,}}}&{{\rm{Sb}}{{\rm{I}}_{\rm{3}}}}\\
{102^\circ }&{100.2^\circ }&{99^\circ }
\end{array}\]
The bond angle is maximum in \(\mathrm{PI}_{3}\), which is

1 due to small size of phosphorus
2 due to more bp-bp repulsion in \(\mathrm{PI}_{3}\)
3 due to less electronegativity of P
4 none of the above
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313550 The d-orbitals involved in \({\rm{ds}}{{\rm{p}}^{\rm{2}}}\) - hybridisation is

1 \({{\rm{d}}_{{\rm{xy}}}}\)
2 \({\rm{d}}\)
3 \({{\rm{d}}_{{{\rm{x}}^{\rm{2}}}{\rm{ - }}{{\rm{y}}^{\rm{2}}}}}\)
4 \({{\rm{d}}_{{\rm{xz}}}}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313551 In which of the following, d - orbitals are not used by central atom in hybridization?

1 \({\rm{P}}{{\rm{F}}_{\rm{5}}}\)
2 \({\rm{PC}}{{\rm{l}}_{\rm{5}}}\)
3 \({\rm{Xe}}{{\rm{O}}_{\rm{3}}}\)
4 \({\rm{Xe}}{{\rm{F}}_{\rm{6}}}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313552 The correct order of increasing s-character (in percentage) in the hybrid orbitals of following molecules/ions is
\(\left( {\rm{I}} \right)\,\,{\rm{CO}}_{\rm{3}}^{{\rm{2 - }}}\)
\(\left( {{\rm{II}}} \right)\,\,{\rm{Xe}}{{\rm{F}}_{\rm{4}}}\)
\(\left( {{\rm{III}}} \right)\,\,{\rm{I}}_{\rm{3}}^{\rm{ - }}\)
\(\left( {{\rm{IV}}} \right)\,\,{\rm{NC}}{{\rm{l}}_{\rm{3}}}\)
\(\left( {\rm{V}} \right)\,\,{\rm{BeC}}{{\rm{l}}_{\rm{2}}}\)

1 II < III < IV < I < V
2 II < IV < III < V < I
3 III < II < I < V < IV
4 II < IV < III < I < V
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313549 Consider the following iodides:
\[\begin{array}{*{20}{c}}
{{\rm{P}}{{\rm{I}}_{\rm{3}}}{\rm{,}}}&{{\rm{As}}{{\rm{I}}_{\rm{3}}}{\rm{,}}}&{{\rm{Sb}}{{\rm{I}}_{\rm{3}}}}\\
{102^\circ }&{100.2^\circ }&{99^\circ }
\end{array}\]
The bond angle is maximum in \(\mathrm{PI}_{3}\), which is

1 due to small size of phosphorus
2 due to more bp-bp repulsion in \(\mathrm{PI}_{3}\)
3 due to less electronegativity of P
4 none of the above
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313550 The d-orbitals involved in \({\rm{ds}}{{\rm{p}}^{\rm{2}}}\) - hybridisation is

1 \({{\rm{d}}_{{\rm{xy}}}}\)
2 \({\rm{d}}\)
3 \({{\rm{d}}_{{{\rm{x}}^{\rm{2}}}{\rm{ - }}{{\rm{y}}^{\rm{2}}}}}\)
4 \({{\rm{d}}_{{\rm{xz}}}}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313551 In which of the following, d - orbitals are not used by central atom in hybridization?

1 \({\rm{P}}{{\rm{F}}_{\rm{5}}}\)
2 \({\rm{PC}}{{\rm{l}}_{\rm{5}}}\)
3 \({\rm{Xe}}{{\rm{O}}_{\rm{3}}}\)
4 \({\rm{Xe}}{{\rm{F}}_{\rm{6}}}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313552 The correct order of increasing s-character (in percentage) in the hybrid orbitals of following molecules/ions is
\(\left( {\rm{I}} \right)\,\,{\rm{CO}}_{\rm{3}}^{{\rm{2 - }}}\)
\(\left( {{\rm{II}}} \right)\,\,{\rm{Xe}}{{\rm{F}}_{\rm{4}}}\)
\(\left( {{\rm{III}}} \right)\,\,{\rm{I}}_{\rm{3}}^{\rm{ - }}\)
\(\left( {{\rm{IV}}} \right)\,\,{\rm{NC}}{{\rm{l}}_{\rm{3}}}\)
\(\left( {\rm{V}} \right)\,\,{\rm{BeC}}{{\rm{l}}_{\rm{2}}}\)

1 II < III < IV < I < V
2 II < IV < III < V < I
3 III < II < I < V < IV
4 II < IV < III < I < V
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313549 Consider the following iodides:
\[\begin{array}{*{20}{c}}
{{\rm{P}}{{\rm{I}}_{\rm{3}}}{\rm{,}}}&{{\rm{As}}{{\rm{I}}_{\rm{3}}}{\rm{,}}}&{{\rm{Sb}}{{\rm{I}}_{\rm{3}}}}\\
{102^\circ }&{100.2^\circ }&{99^\circ }
\end{array}\]
The bond angle is maximum in \(\mathrm{PI}_{3}\), which is

1 due to small size of phosphorus
2 due to more bp-bp repulsion in \(\mathrm{PI}_{3}\)
3 due to less electronegativity of P
4 none of the above
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313550 The d-orbitals involved in \({\rm{ds}}{{\rm{p}}^{\rm{2}}}\) - hybridisation is

1 \({{\rm{d}}_{{\rm{xy}}}}\)
2 \({\rm{d}}\)
3 \({{\rm{d}}_{{{\rm{x}}^{\rm{2}}}{\rm{ - }}{{\rm{y}}^{\rm{2}}}}}\)
4 \({{\rm{d}}_{{\rm{xz}}}}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313551 In which of the following, d - orbitals are not used by central atom in hybridization?

1 \({\rm{P}}{{\rm{F}}_{\rm{5}}}\)
2 \({\rm{PC}}{{\rm{l}}_{\rm{5}}}\)
3 \({\rm{Xe}}{{\rm{O}}_{\rm{3}}}\)
4 \({\rm{Xe}}{{\rm{F}}_{\rm{6}}}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313552 The correct order of increasing s-character (in percentage) in the hybrid orbitals of following molecules/ions is
\(\left( {\rm{I}} \right)\,\,{\rm{CO}}_{\rm{3}}^{{\rm{2 - }}}\)
\(\left( {{\rm{II}}} \right)\,\,{\rm{Xe}}{{\rm{F}}_{\rm{4}}}\)
\(\left( {{\rm{III}}} \right)\,\,{\rm{I}}_{\rm{3}}^{\rm{ - }}\)
\(\left( {{\rm{IV}}} \right)\,\,{\rm{NC}}{{\rm{l}}_{\rm{3}}}\)
\(\left( {\rm{V}} \right)\,\,{\rm{BeC}}{{\rm{l}}_{\rm{2}}}\)

1 II < III < IV < I < V
2 II < IV < III < V < I
3 III < II < I < V < IV
4 II < IV < III < I < V
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313549 Consider the following iodides:
\[\begin{array}{*{20}{c}}
{{\rm{P}}{{\rm{I}}_{\rm{3}}}{\rm{,}}}&{{\rm{As}}{{\rm{I}}_{\rm{3}}}{\rm{,}}}&{{\rm{Sb}}{{\rm{I}}_{\rm{3}}}}\\
{102^\circ }&{100.2^\circ }&{99^\circ }
\end{array}\]
The bond angle is maximum in \(\mathrm{PI}_{3}\), which is

1 due to small size of phosphorus
2 due to more bp-bp repulsion in \(\mathrm{PI}_{3}\)
3 due to less electronegativity of P
4 none of the above
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313550 The d-orbitals involved in \({\rm{ds}}{{\rm{p}}^{\rm{2}}}\) - hybridisation is

1 \({{\rm{d}}_{{\rm{xy}}}}\)
2 \({\rm{d}}\)
3 \({{\rm{d}}_{{{\rm{x}}^{\rm{2}}}{\rm{ - }}{{\rm{y}}^{\rm{2}}}}}\)
4 \({{\rm{d}}_{{\rm{xz}}}}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313551 In which of the following, d - orbitals are not used by central atom in hybridization?

1 \({\rm{P}}{{\rm{F}}_{\rm{5}}}\)
2 \({\rm{PC}}{{\rm{l}}_{\rm{5}}}\)
3 \({\rm{Xe}}{{\rm{O}}_{\rm{3}}}\)
4 \({\rm{Xe}}{{\rm{F}}_{\rm{6}}}\)
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313552 The correct order of increasing s-character (in percentage) in the hybrid orbitals of following molecules/ions is
\(\left( {\rm{I}} \right)\,\,{\rm{CO}}_{\rm{3}}^{{\rm{2 - }}}\)
\(\left( {{\rm{II}}} \right)\,\,{\rm{Xe}}{{\rm{F}}_{\rm{4}}}\)
\(\left( {{\rm{III}}} \right)\,\,{\rm{I}}_{\rm{3}}^{\rm{ - }}\)
\(\left( {{\rm{IV}}} \right)\,\,{\rm{NC}}{{\rm{l}}_{\rm{3}}}\)
\(\left( {\rm{V}} \right)\,\,{\rm{BeC}}{{\rm{l}}_{\rm{2}}}\)

1 II < III < IV < I < V
2 II < IV < III < V < I
3 III < II < I < V < IV
4 II < IV < III < I < V