Comparision of Valence Bond Theory and Molecular Orbital Theory
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313715 Which one of the following properties is not shown by NO?

1 It is diamagnetic in gaseous state
2 It is neutral oxide
3 It combines with oxygen to form nitrogen dioxide
4 It’s bond order is 2.5
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313716 Bond order normally gives idea of stability of a molecular species. All the molecules viz. \({{\rm{H}}_{\rm{2}}}{\rm{,}}\,\,{\rm{L}}{{\rm{i}}_{\rm{2}}}\,\,{\rm{and}}\,\,{{\rm{B}}_{\rm{2}}}\) have the same bond order yet they are not equally stable. Their stability order is

1 \({{\rm{H}}_{\rm{2}}}{\rm{ > L}}{{\rm{i}}_{\rm{2}}}{\rm{ > }}{{\rm{B}}_{\rm{2}}}\)
2 \({\rm{L}}{{\rm{i}}_{\rm{2}}}{\rm{ > }}{{\rm{H}}_{\rm{2}}}{\rm{ > }}{{\rm{B}}_{\rm{2}}}\)
3 \({\rm{L}}{{\rm{i}}_{\rm{2}}}{\rm{ > }}{{\rm{B}}_{\rm{2}}}{\rm{ > }}{{\rm{H}}_{\rm{2}}}\)
4 \({{\rm{B}}_{\rm{2}}}{\rm{ > }}{{\rm{H}}_{\rm{2}}}{\rm{ > L}}{{\rm{i}}_{\rm{2}}}\)
JEE - 2013
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313717 The common features among the species \(\mathrm{CN}^{-}, \mathrm{CO}\) and \(\mathrm{NO}^{+}\)are

1 bond order three and isoelectronic
2 bond order three and weak field ligands
3 bond order two and \(\pi\)-acceptor
4 isoelectronic and weak field ligands
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313718 Using MO theory, predict which of the following species has the shortest bond length?

1 \({\rm{O}}_{\rm{2}}^{\rm{ + }}\)
2 \({\rm{O}}_{\rm{2}}^{\rm{ - }}\)
3 \({\rm{O}}_{\rm{2}}^{{\rm{2 - }}}\)
4 \({\rm{O}}_{\rm{2}}^{{\rm{2 + }}}\)
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313715 Which one of the following properties is not shown by NO?

1 It is diamagnetic in gaseous state
2 It is neutral oxide
3 It combines with oxygen to form nitrogen dioxide
4 It’s bond order is 2.5
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313716 Bond order normally gives idea of stability of a molecular species. All the molecules viz. \({{\rm{H}}_{\rm{2}}}{\rm{,}}\,\,{\rm{L}}{{\rm{i}}_{\rm{2}}}\,\,{\rm{and}}\,\,{{\rm{B}}_{\rm{2}}}\) have the same bond order yet they are not equally stable. Their stability order is

1 \({{\rm{H}}_{\rm{2}}}{\rm{ > L}}{{\rm{i}}_{\rm{2}}}{\rm{ > }}{{\rm{B}}_{\rm{2}}}\)
2 \({\rm{L}}{{\rm{i}}_{\rm{2}}}{\rm{ > }}{{\rm{H}}_{\rm{2}}}{\rm{ > }}{{\rm{B}}_{\rm{2}}}\)
3 \({\rm{L}}{{\rm{i}}_{\rm{2}}}{\rm{ > }}{{\rm{B}}_{\rm{2}}}{\rm{ > }}{{\rm{H}}_{\rm{2}}}\)
4 \({{\rm{B}}_{\rm{2}}}{\rm{ > }}{{\rm{H}}_{\rm{2}}}{\rm{ > L}}{{\rm{i}}_{\rm{2}}}\)
JEE - 2013
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313717 The common features among the species \(\mathrm{CN}^{-}, \mathrm{CO}\) and \(\mathrm{NO}^{+}\)are

1 bond order three and isoelectronic
2 bond order three and weak field ligands
3 bond order two and \(\pi\)-acceptor
4 isoelectronic and weak field ligands
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313718 Using MO theory, predict which of the following species has the shortest bond length?

1 \({\rm{O}}_{\rm{2}}^{\rm{ + }}\)
2 \({\rm{O}}_{\rm{2}}^{\rm{ - }}\)
3 \({\rm{O}}_{\rm{2}}^{{\rm{2 - }}}\)
4 \({\rm{O}}_{\rm{2}}^{{\rm{2 + }}}\)
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313715 Which one of the following properties is not shown by NO?

1 It is diamagnetic in gaseous state
2 It is neutral oxide
3 It combines with oxygen to form nitrogen dioxide
4 It’s bond order is 2.5
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313716 Bond order normally gives idea of stability of a molecular species. All the molecules viz. \({{\rm{H}}_{\rm{2}}}{\rm{,}}\,\,{\rm{L}}{{\rm{i}}_{\rm{2}}}\,\,{\rm{and}}\,\,{{\rm{B}}_{\rm{2}}}\) have the same bond order yet they are not equally stable. Their stability order is

1 \({{\rm{H}}_{\rm{2}}}{\rm{ > L}}{{\rm{i}}_{\rm{2}}}{\rm{ > }}{{\rm{B}}_{\rm{2}}}\)
2 \({\rm{L}}{{\rm{i}}_{\rm{2}}}{\rm{ > }}{{\rm{H}}_{\rm{2}}}{\rm{ > }}{{\rm{B}}_{\rm{2}}}\)
3 \({\rm{L}}{{\rm{i}}_{\rm{2}}}{\rm{ > }}{{\rm{B}}_{\rm{2}}}{\rm{ > }}{{\rm{H}}_{\rm{2}}}\)
4 \({{\rm{B}}_{\rm{2}}}{\rm{ > }}{{\rm{H}}_{\rm{2}}}{\rm{ > L}}{{\rm{i}}_{\rm{2}}}\)
JEE - 2013
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313717 The common features among the species \(\mathrm{CN}^{-}, \mathrm{CO}\) and \(\mathrm{NO}^{+}\)are

1 bond order three and isoelectronic
2 bond order three and weak field ligands
3 bond order two and \(\pi\)-acceptor
4 isoelectronic and weak field ligands
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313718 Using MO theory, predict which of the following species has the shortest bond length?

1 \({\rm{O}}_{\rm{2}}^{\rm{ + }}\)
2 \({\rm{O}}_{\rm{2}}^{\rm{ - }}\)
3 \({\rm{O}}_{\rm{2}}^{{\rm{2 - }}}\)
4 \({\rm{O}}_{\rm{2}}^{{\rm{2 + }}}\)
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313715 Which one of the following properties is not shown by NO?

1 It is diamagnetic in gaseous state
2 It is neutral oxide
3 It combines with oxygen to form nitrogen dioxide
4 It’s bond order is 2.5
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313716 Bond order normally gives idea of stability of a molecular species. All the molecules viz. \({{\rm{H}}_{\rm{2}}}{\rm{,}}\,\,{\rm{L}}{{\rm{i}}_{\rm{2}}}\,\,{\rm{and}}\,\,{{\rm{B}}_{\rm{2}}}\) have the same bond order yet they are not equally stable. Their stability order is

1 \({{\rm{H}}_{\rm{2}}}{\rm{ > L}}{{\rm{i}}_{\rm{2}}}{\rm{ > }}{{\rm{B}}_{\rm{2}}}\)
2 \({\rm{L}}{{\rm{i}}_{\rm{2}}}{\rm{ > }}{{\rm{H}}_{\rm{2}}}{\rm{ > }}{{\rm{B}}_{\rm{2}}}\)
3 \({\rm{L}}{{\rm{i}}_{\rm{2}}}{\rm{ > }}{{\rm{B}}_{\rm{2}}}{\rm{ > }}{{\rm{H}}_{\rm{2}}}\)
4 \({{\rm{B}}_{\rm{2}}}{\rm{ > }}{{\rm{H}}_{\rm{2}}}{\rm{ > L}}{{\rm{i}}_{\rm{2}}}\)
JEE - 2013
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313717 The common features among the species \(\mathrm{CN}^{-}, \mathrm{CO}\) and \(\mathrm{NO}^{+}\)are

1 bond order three and isoelectronic
2 bond order three and weak field ligands
3 bond order two and \(\pi\)-acceptor
4 isoelectronic and weak field ligands
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313718 Using MO theory, predict which of the following species has the shortest bond length?

1 \({\rm{O}}_{\rm{2}}^{\rm{ + }}\)
2 \({\rm{O}}_{\rm{2}}^{\rm{ - }}\)
3 \({\rm{O}}_{\rm{2}}^{{\rm{2 - }}}\)
4 \({\rm{O}}_{\rm{2}}^{{\rm{2 + }}}\)
For More Updates join with Us