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

313728 Which of the following is paramagnetic with bond order 0.5 ?

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

313729 Peroxide ion
(i) Has five completely filled antibonding molecular orbitals
(ii) Is diamagnetic
(iii) Has bond order one
(iv) Is isoelectronic with neon
Which one of these is correct?

1 iv and iii
2 i, ii and iv
3 ii & iii
4 i and iv
KCET - 2010
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313730 Which of the following statement is correct about \({{\rm{N}}_{\rm{2}}}\) molecule?

1 It has a bond order of 3
2 The number of unpaired electrons present in it is zero and hence it is diamagnetic
3 The order of filling of MOs is \({\rm{\pi }}\left( {{\rm{2}}{{\rm{p}}_{\rm{x}}}} \right){\rm{ = \pi }}\left( {{\rm{2}}{{\rm{p}}_{\rm{y}}}} \right){\rm{,\sigma }}\left( {{\rm{2}}{{\rm{p}}_{\rm{z}}}} \right)\)
4 All statements are correct
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313731 Consider the following species : \({\rm{C}}{{\rm{N}}^{\rm{ + }}}{\rm{,}}\,\,{\rm{C}}{{\rm{N}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{NO}}\,\,{\rm{and}}\,\,{\rm{CN}}\) Which one of these will have the highest bond order ?

1 \({\rm{C}}{{\rm{N}}^{\rm{ + }}}\)
2 \({\rm{CN}}\)
3 \({\rm{C}}{{\rm{N}}^{\rm{ - }}}\)
4 \({\rm{NO}}\)
NEET - 2018
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313728 Which of the following is paramagnetic with bond order 0.5 ?

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

313729 Peroxide ion
(i) Has five completely filled antibonding molecular orbitals
(ii) Is diamagnetic
(iii) Has bond order one
(iv) Is isoelectronic with neon
Which one of these is correct?

1 iv and iii
2 i, ii and iv
3 ii & iii
4 i and iv
KCET - 2010
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313730 Which of the following statement is correct about \({{\rm{N}}_{\rm{2}}}\) molecule?

1 It has a bond order of 3
2 The number of unpaired electrons present in it is zero and hence it is diamagnetic
3 The order of filling of MOs is \({\rm{\pi }}\left( {{\rm{2}}{{\rm{p}}_{\rm{x}}}} \right){\rm{ = \pi }}\left( {{\rm{2}}{{\rm{p}}_{\rm{y}}}} \right){\rm{,\sigma }}\left( {{\rm{2}}{{\rm{p}}_{\rm{z}}}} \right)\)
4 All statements are correct
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313731 Consider the following species : \({\rm{C}}{{\rm{N}}^{\rm{ + }}}{\rm{,}}\,\,{\rm{C}}{{\rm{N}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{NO}}\,\,{\rm{and}}\,\,{\rm{CN}}\) Which one of these will have the highest bond order ?

1 \({\rm{C}}{{\rm{N}}^{\rm{ + }}}\)
2 \({\rm{CN}}\)
3 \({\rm{C}}{{\rm{N}}^{\rm{ - }}}\)
4 \({\rm{NO}}\)
NEET - 2018
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313728 Which of the following is paramagnetic with bond order 0.5 ?

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

313729 Peroxide ion
(i) Has five completely filled antibonding molecular orbitals
(ii) Is diamagnetic
(iii) Has bond order one
(iv) Is isoelectronic with neon
Which one of these is correct?

1 iv and iii
2 i, ii and iv
3 ii & iii
4 i and iv
KCET - 2010
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313730 Which of the following statement is correct about \({{\rm{N}}_{\rm{2}}}\) molecule?

1 It has a bond order of 3
2 The number of unpaired electrons present in it is zero and hence it is diamagnetic
3 The order of filling of MOs is \({\rm{\pi }}\left( {{\rm{2}}{{\rm{p}}_{\rm{x}}}} \right){\rm{ = \pi }}\left( {{\rm{2}}{{\rm{p}}_{\rm{y}}}} \right){\rm{,\sigma }}\left( {{\rm{2}}{{\rm{p}}_{\rm{z}}}} \right)\)
4 All statements are correct
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313731 Consider the following species : \({\rm{C}}{{\rm{N}}^{\rm{ + }}}{\rm{,}}\,\,{\rm{C}}{{\rm{N}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{NO}}\,\,{\rm{and}}\,\,{\rm{CN}}\) Which one of these will have the highest bond order ?

1 \({\rm{C}}{{\rm{N}}^{\rm{ + }}}\)
2 \({\rm{CN}}\)
3 \({\rm{C}}{{\rm{N}}^{\rm{ - }}}\)
4 \({\rm{NO}}\)
NEET - 2018
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CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313728 Which of the following is paramagnetic with bond order 0.5 ?

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

313729 Peroxide ion
(i) Has five completely filled antibonding molecular orbitals
(ii) Is diamagnetic
(iii) Has bond order one
(iv) Is isoelectronic with neon
Which one of these is correct?

1 iv and iii
2 i, ii and iv
3 ii & iii
4 i and iv
KCET - 2010
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313730 Which of the following statement is correct about \({{\rm{N}}_{\rm{2}}}\) molecule?

1 It has a bond order of 3
2 The number of unpaired electrons present in it is zero and hence it is diamagnetic
3 The order of filling of MOs is \({\rm{\pi }}\left( {{\rm{2}}{{\rm{p}}_{\rm{x}}}} \right){\rm{ = \pi }}\left( {{\rm{2}}{{\rm{p}}_{\rm{y}}}} \right){\rm{,\sigma }}\left( {{\rm{2}}{{\rm{p}}_{\rm{z}}}} \right)\)
4 All statements are correct
CHXI04:CHEMICAL BONDING AND MOLECULAR STRUCTURE

313731 Consider the following species : \({\rm{C}}{{\rm{N}}^{\rm{ + }}}{\rm{,}}\,\,{\rm{C}}{{\rm{N}}^{\rm{ - }}}{\rm{,}}\,\,{\rm{NO}}\,\,{\rm{and}}\,\,{\rm{CN}}\) Which one of these will have the highest bond order ?

1 \({\rm{C}}{{\rm{N}}^{\rm{ + }}}\)
2 \({\rm{CN}}\)
3 \({\rm{C}}{{\rm{N}}^{\rm{ - }}}\)
4 \({\rm{NO}}\)
NEET - 2018
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